if ( jQuery.css ) {

QUnit.module( "css", { teardown: moduleTeardown } );

QUnit.test( "css(String|Hash)", function( assert ) {
	assert.expect( 43 );

	assert.equal( jQuery( "#qunit-fixture" ).css( "display" ), "block", "Check for css property \"display\"" );

	var $child, div, div2, width, height, child, prctval, checkval, old;

	$child = jQuery( "#nothiddendivchild" ).css( { "width": "20%", "height": "20%" } );
	assert.notEqual( $child.css( "width" ), "20px", "Retrieving a width percentage on the child of a hidden div returns percentage" );
	assert.notEqual( $child.css( "height" ), "20px", "Retrieving a height percentage on the child of a hidden div returns percentage" );

	div = jQuery( "<div/>" );

	// These should be "auto" (or some better value)
	// temporarily provide "0px" for backwards compat
	assert.equal( div.css( "width" ), "0px", "Width on disconnected node." );
	assert.equal( div.css( "height" ), "0px", "Height on disconnected node." );

	div.css( { "width": 4, "height": 4 } );

	assert.equal( div.css( "width" ), "4px", "Width on disconnected node." );
	assert.equal( div.css( "height" ), "4px", "Height on disconnected node." );

	div2 = jQuery( "<div style='display:none;'><input type='text' style='height:20px;'/><textarea style='height:20px;'/><div style='height:20px;'></div></div>" ).appendTo( "body" );

	assert.equal( div2.find( "input" ).css( "height" ), "20px", "Height on hidden input." );
	assert.equal( div2.find( "textarea" ).css( "height" ), "20px", "Height on hidden textarea." );
	assert.equal( div2.find( "div" ).css( "height" ), "20px", "Height on hidden div." );

	div2.remove();

	// handle negative numbers by setting to zero #11604
	jQuery( "#nothiddendiv" ).css( { "width": 1, "height": 1 } );

	width = parseFloat( jQuery( "#nothiddendiv" ).css( "width" ) );
	height = parseFloat( jQuery( "#nothiddendiv" ).css( "height" ) );
	jQuery( "#nothiddendiv" ).css( { "overflow":"hidden", "width": -1, "height": -1 } );
	assert.equal( parseFloat( jQuery( "#nothiddendiv" ).css( "width" ) ), 0, "Test negative width set to 0" );
	assert.equal( parseFloat( jQuery( "#nothiddendiv" ).css( "height" ) ), 0, "Test negative height set to 0" );

	assert.equal( jQuery( "<div style='display: none;'/>" ).css( "display" ), "none", "Styles on disconnected nodes" );

	jQuery( "#floatTest" ).css( { "float": "right" } );
	assert.equal( jQuery( "#floatTest" ).css( "float" ), "right", "Modified CSS float using \"float\": Assert float is right" );
	jQuery( "#floatTest" ).css( { "font-size": "30px" } );
	assert.equal( jQuery( "#floatTest" ).css( "font-size" ), "30px", "Modified CSS font-size: Assert font-size is 30px" );
	jQuery.each( "0,0.25,0.5,0.75,1".split( "," ), function( i, n ) {
		jQuery( "#foo" ).css( { "opacity": n } );

		assert.equal( jQuery( "#foo" ).css( "opacity" ), parseFloat( n ), "Assert opacity is " + parseFloat( n ) + " as a String" );
		jQuery( "#foo" ).css( { "opacity": parseFloat( n ) } );
		assert.equal( jQuery( "#foo" ).css( "opacity" ), parseFloat( n ), "Assert opacity is " + parseFloat( n ) + " as a Number" );
	} );
	jQuery( "#foo" ).css( { "opacity": "" } );
	assert.equal( jQuery( "#foo" ).css( "opacity" ), "1", "Assert opacity is 1 when set to an empty String" );

	assert.equal( jQuery( "#empty" ).css( "opacity" ), "0", "Assert opacity is accessible via filter property set in stylesheet in IE" );
	jQuery( "#empty" ).css( { "opacity": "1" } );
	assert.equal( jQuery( "#empty" ).css( "opacity" ), "1", "Assert opacity is taken from style attribute when set vs stylesheet in IE with filters" );
	jQuery.support.opacity ?
		assert.ok( true, "Requires the same number of tests" ) :
		assert.ok( ~jQuery( "#empty" )[ 0 ].currentStyle.filter.indexOf( "gradient" ), "Assert setting opacity doesn't overwrite other filters of the stylesheet in IE" );

	div = jQuery( "#nothiddendiv" );
	child = jQuery( "#nothiddendivchild" );

	assert.equal( parseInt( div.css( "fontSize" ), 10 ), 16, "Verify fontSize px set." );
	assert.equal( parseInt( div.css( "font-size" ), 10 ), 16, "Verify fontSize px set." );
	assert.equal( parseInt( child.css( "fontSize" ), 10 ), 16, "Verify fontSize px set." );
	assert.equal( parseInt( child.css( "font-size" ), 10 ), 16, "Verify fontSize px set." );

	child.css( "height", "100%" );
	assert.equal( child[ 0 ].style.height, "100%", "Make sure the height is being set correctly." );

	child.attr( "class", "em" );
	assert.equal( parseInt( child.css( "fontSize" ), 10 ), 32, "Verify fontSize em set." );

	// Have to verify this as the result depends upon the browser's CSS
	// support for font-size percentages
	child.attr( "class", "prct" );
	prctval = parseInt( child.css( "fontSize" ), 10 );
	checkval = 0;
	if ( prctval === 16 || prctval === 24 ) {
		checkval = prctval;
	}

	assert.equal( prctval, checkval, "Verify fontSize % set." );

	assert.equal( typeof child.css( "width" ), "string", "Make sure that a string width is returned from css('width')." );

	old = child[ 0 ].style.height;

	// Test NaN
	child.css( "height", parseFloat( "zoo" ) );
	assert.equal( child[ 0 ].style.height, old, "Make sure height isn't changed on NaN." );

	// Test null
	child.css( "height", null );
	assert.equal( child[ 0 ].style.height, old, "Make sure height isn't changed on null." );

	old = child[ 0 ].style.fontSize;

	// Test NaN
	child.css( "font-size", parseFloat( "zoo" ) );
	assert.equal( child[ 0 ].style.fontSize, old, "Make sure font-size isn't changed on NaN." );

	// Test null
	child.css( "font-size", null );
	assert.equal( child[ 0 ].style.fontSize, old, "Make sure font-size isn't changed on null." );

	assert.strictEqual( child.css( "x-fake" ), undefined, "Make sure undefined is returned from css(nonexistent)." );

	div = jQuery( "<div/>" ).css( { position: "absolute", "z-index": 1000 } ).appendTo( "#qunit-fixture" );
	assert.strictEqual( div.css( "z-index" ), "1000",
		"Make sure that a string z-index is returned from css('z-index') (#14432)." );
} );

QUnit.test( "css() explicit and relative values", function( assert ) {
	assert.expect( 29 );

	var $elem = jQuery( "#nothiddendiv" );

	$elem.css( { "width": 1, "height": 1, "paddingLeft": "1px", "opacity": 1 } );
	assert.equal( $elem.css( "width" ), "1px", "Initial css set or width/height works (hash)" );
	assert.equal( $elem.css( "paddingLeft" ), "1px", "Initial css set of paddingLeft works (hash)" );
	assert.equal( $elem.css( "opacity" ), "1", "Initial css set of opacity works (hash)" );

	$elem.css( { width: "+=9" } );
	assert.equal( $elem.css( "width" ), "10px", "'+=9' on width (hash)" );

	$elem.css( { "width": "-=9" } );
	assert.equal( $elem.css( "width" ), "1px", "'-=9' on width (hash)" );

	$elem.css( { "width": "+=9px" } );
	assert.equal( $elem.css( "width" ), "10px", "'+=9px' on width (hash)" );

	$elem.css( { "width": "-=9px" } );
	assert.equal( $elem.css( "width" ), "1px", "'-=9px' on width (hash)" );

	$elem.css( "width", "+=9" );
	assert.equal( $elem.css( "width" ), "10px", "'+=9' on width (params)" );

	$elem.css( "width", "-=9" ) ;
	assert.equal( $elem.css( "width" ), "1px", "'-=9' on width (params)" );

	$elem.css( "width", "+=9px" );
	assert.equal( $elem.css( "width" ), "10px", "'+=9px' on width (params)" );

	$elem.css( "width", "-=9px" );
	assert.equal( $elem.css( "width" ), "1px", "'-=9px' on width (params)" );

	$elem.css( "width", "-=-9px" );
	assert.equal( $elem.css( "width" ), "10px", "'-=-9px' on width (params)" );

	$elem.css( "width", "+=-9px" );
	assert.equal( $elem.css( "width" ), "1px", "'+=-9px' on width (params)" );

	$elem.css( { "paddingLeft": "+=4" } );
	assert.equal( $elem.css( "paddingLeft" ), "5px", "'+=4' on paddingLeft (hash)" );

	$elem.css( { "paddingLeft": "-=4" } );
	assert.equal( $elem.css( "paddingLeft" ), "1px", "'-=4' on paddingLeft (hash)" );

	$elem.css( { "paddingLeft": "+=4px" } );
	assert.equal( $elem.css( "paddingLeft" ), "5px", "'+=4px' on paddingLeft (hash)" );

	$elem.css( { "paddingLeft": "-=4px" } );
	assert.equal( $elem.css( "paddingLeft" ), "1px", "'-=4px' on paddingLeft (hash)" );

	$elem.css( { "padding-left": "+=4" } );
	assert.equal( $elem.css( "paddingLeft" ), "5px", "'+=4' on padding-left (hash)" );

	$elem.css( { "padding-left": "-=4" } );
	assert.equal( $elem.css( "paddingLeft" ), "1px", "'-=4' on padding-left (hash)" );

	$elem.css( { "padding-left": "+=4px" } );
	assert.equal( $elem.css( "paddingLeft" ), "5px", "'+=4px' on padding-left (hash)" );

	$elem.css( { "padding-left": "-=4px" } );
	assert.equal( $elem.css( "paddingLeft" ), "1px", "'-=4px' on padding-left (hash)" );

	$elem.css( "paddingLeft", "+=4" );
	assert.equal( $elem.css( "paddingLeft" ), "5px", "'+=4' on paddingLeft (params)" );

	$elem.css( "paddingLeft", "-=4" );
	assert.equal( $elem.css( "paddingLeft" ), "1px", "'-=4' on paddingLeft (params)" );

	$elem.css( "padding-left", "+=4px" );
	assert.equal( $elem.css( "paddingLeft" ), "5px", "'+=4px' on padding-left (params)" );

	$elem.css( "padding-left", "-=4px" );
	assert.equal( $elem.css( "paddingLeft" ), "1px", "'-=4px' on padding-left (params)" );

	$elem.css( { "opacity": "-=0.5" } );
	assert.equal( $elem.css( "opacity" ), "0.5", "'-=0.5' on opacity (hash)" );

	$elem.css( { "opacity": "+=0.5" } );
	assert.equal( $elem.css( "opacity" ), "1", "'+=0.5' on opacity (hash)" );

	$elem.css( "opacity", "-=0.5" );
	assert.equal( $elem.css( "opacity" ), "0.5", "'-=0.5' on opacity (params)" );

	$elem.css( "opacity", "+=0.5" );
	assert.equal( $elem.css( "opacity" ), "1", "'+=0.5' on opacity (params)" );
} );

QUnit.test( "css() non-px relative values (gh-1711)", function( assert ) {
	assert.expect( 17 );

	var cssCurrent,
		units = {},
		$child = jQuery( "#nothiddendivchild" ),
		add = function( prop, val, unit ) {
			var difference,
				adjustment = ( val < 0 ? "-=" : "+=" ) + Math.abs( val ) + unit,
				message = prop + ": " + adjustment,
				cssOld = cssCurrent,
				expected = cssOld + val * units[ prop ][ unit ];

			// Apply change
			$child.css( prop, adjustment );
			cssCurrent = parseFloat( $child.css( prop ) );

			// Require a difference of no more than one pixel
			difference = Math.abs( cssCurrent - expected );
			if ( difference <= 1 ) {
				assert.ok( true, message );

			// ...or fail with actual and expected values
			} else {
				assert.ok( false, message + " (actual " + cssCurrent + ", expected " + expected + ")" );
			}
		},
		getUnits = function( prop ) {
			units[ prop ] = {
				"px": 1,
				"em": parseFloat( $child.css( prop, "100em" ).css( prop ) ) / 100,
				"pt": parseFloat( $child.css( prop, "100pt" ).css( prop ) ) / 100,
				"pc": parseFloat( $child.css( prop, "100pc" ).css( prop ) ) / 100,
				"cm": parseFloat( $child.css( prop, "100cm" ).css( prop ) ) / 100,
				"mm": parseFloat( $child.css( prop, "100mm" ).css( prop ) ) / 100,
				"%": parseFloat( $child.css( prop, "100%"  ).css( prop ) ) / 100
			};
		};

	jQuery( "#nothiddendiv" ).css( { height: 1, padding: 0, width: 400 } );
	$child.css( { height: 1, padding: 0 } );

	getUnits( "width" );
	cssCurrent = parseFloat( $child.css( "width", "50%" ).css( "width" ) );
	add( "width",  25,    "%" );
	add( "width", -50,    "%" );
	add( "width",  10,   "em" );
	add( "width",  10,   "pt" );
	add( "width",  -2.3, "pt" );
	add( "width",   5,   "pc" );
	add( "width",  -5,   "em" );
	add( "width",  +2,   "cm" );
	add( "width", -15,   "mm" );
	add( "width",  21,   "px" );

	getUnits( "lineHeight" );
	cssCurrent = parseFloat( $child.css( "lineHeight", "1em" ).css( "lineHeight" ) );
	add( "lineHeight",   2, "em" );
	add( "lineHeight", -10, "px" );
	add( "lineHeight",  20, "pt" );
	add( "lineHeight",  30, "pc" );
	add( "lineHeight",   1, "cm" );
	add( "lineHeight", -20, "mm" );
	add( "lineHeight",  50,  "%" );
} );

QUnit.test( "css(String, Object)", function( assert ) {
	assert.expect( 19 );
	var j, div, display, ret, success;

	jQuery( "#floatTest" ).css( "float", "left" );
	assert.equal( jQuery( "#floatTest" ).css( "float" ), "left", "Modified CSS float using \"float\": Assert float is left" );
	jQuery( "#floatTest" ).css( "font-size", "20px" );
	assert.equal( jQuery( "#floatTest" ).css( "font-size" ), "20px", "Modified CSS font-size: Assert font-size is 20px" );

	jQuery.each( "0,0.25,0.5,0.75,1".split( "," ), function( i, n ) {
		jQuery( "#foo" ).css( "opacity", n );
		assert.equal( jQuery( "#foo" ).css( "opacity" ), parseFloat( n ), "Assert opacity is " + parseFloat( n ) + " as a String" );
		jQuery( "#foo" ).css( "opacity", parseFloat( n ) );
		assert.equal( jQuery( "#foo" ).css( "opacity" ), parseFloat( n ), "Assert opacity is " + parseFloat( n ) + " as a Number" );
	} );
	jQuery( "#foo" ).css( "opacity", "" );
	assert.equal( jQuery( "#foo" ).css( "opacity" ), "1", "Assert opacity is 1 when set to an empty String" );

	// using contents will get comments regular, text, and comment nodes
	j = jQuery( "#nonnodes" ).contents();
	j.css( "overflow", "visible" );
	assert.equal( j.css( "overflow" ), "visible", "Check node,textnode,comment css works" );
	assert.equal( jQuery( "#t2037 .hidden" ).css( "display" ), "none", "Make sure browser thinks it is hidden" );

	div = jQuery( "#nothiddendiv" );
	display = div.css( "display" );
	ret = div.css( "display", undefined );

	assert.equal( ret, div, "Make sure setting undefined returns the original set." );
	assert.equal( div.css( "display" ), display, "Make sure that the display wasn't changed." );

	success = true;
	try {
		jQuery( "#foo" ).css( "backgroundColor", "rgba(0, 0, 0, 0.1)" );
	}
	catch ( e ) {
		success = false;
	}
	assert.ok( success, "Setting RGBA values does not throw Error (#5509)" );

	jQuery( "#foo" ).css( "font", "7px/21px sans-serif" );
	assert.strictEqual( jQuery( "#foo" ).css( "line-height" ), "21px",
		"Set font shorthand property (#14759)" );
} );

QUnit.test( "css(String, Object) with negative values", function( assert ) {
	assert.expect( 4 );

	jQuery( "#nothiddendiv" ).css( "margin-top", "-10px" );
	jQuery( "#nothiddendiv" ).css( "margin-left", "-10px" );
	assert.equal( jQuery( "#nothiddendiv" ).css( "margin-top" ), "-10px", "Ensure negative top margins work." );
	assert.equal( jQuery( "#nothiddendiv" ).css( "margin-left" ), "-10px", "Ensure negative left margins work." );

	jQuery( "#nothiddendiv" ).css( "position", "absolute" );
	jQuery( "#nothiddendiv" ).css( "top", "-20px" );
	jQuery( "#nothiddendiv" ).css( "left", "-20px" );
	assert.equal( jQuery( "#nothiddendiv" ).css( "top" ), "-20px", "Ensure negative top values work." );
	assert.equal( jQuery( "#nothiddendiv" ).css( "left" ), "-20px", "Ensure negative left values work." );
} );

QUnit.test( "css(Array)", function( assert ) {
	assert.expect( 2 );

	var expectedMany = {
			"overflow": "visible",
			"width": "16px"
		},
		expectedSingle = {
			"width": "16px"
		},
		elem = jQuery( "<div></div>" ).appendTo( "#qunit-fixture" );

	assert.deepEqual( elem.css( expectedMany ).css( [ "overflow", "width" ] ), expectedMany, "Getting multiple element array" );
	assert.deepEqual( elem.css( expectedSingle ).css( [ "width" ] ), expectedSingle, "Getting single element array" );
} );

if ( !jQuery.support.opacity ) {
	QUnit.test( "css(String, Object) for MSIE", function( assert ) {
		assert.expect( 5 );

		// for #1438, IE throws JS error when filter exists but doesn't have opacity in it
		jQuery( "#foo" ).css( "filter", "progid:DXImageTransform.Microsoft.Chroma(color='red');" );
		assert.equal( jQuery( "#foo" ).css( "opacity" ), "1", "Assert opacity is 1 when a different filter is set in IE, #1438" );

		var filterVal = "progid:DXImageTransform.Microsoft.Alpha(opacity=30) progid:DXImageTransform.Microsoft.Blur(pixelradius=5)",
			filterVal2 = "progid:DXImageTransform.Microsoft.alpha(opacity=100) progid:DXImageTransform.Microsoft.Blur(pixelradius=5)",
			filterVal3 = "progid:DXImageTransform.Microsoft.Blur(pixelradius=5)";
		jQuery( "#foo" ).css( "filter", filterVal );
		assert.equal( jQuery( "#foo" ).css( "filter" ), filterVal, "css('filter', val) works" );
		jQuery( "#foo" ).css( "opacity", 1 );
		assert.equal( jQuery( "#foo" ).css( "filter" ), filterVal2, "Setting opacity in IE doesn't duplicate opacity filter" );
		assert.equal( jQuery( "#foo" ).css( "opacity" ), 1, "Setting opacity in IE with other filters works" );
		jQuery( "#foo" ).css( "filter", filterVal3 ).css( "opacity", 1 );
		assert.ok( jQuery( "#foo" ).css( "filter" ).indexOf( filterVal3 ) !== -1, "Setting opacity in IE doesn't clobber other filters" );
	} );

	QUnit.test( "Setting opacity to 1 properly removes filter: style (#6652)", function( assert ) {
		var rfilter = /filter:[^;]*/i,
			test = jQuery( "#t6652" ).css( "opacity", 1 ),
			test2 = test.find( "div" ).css( "opacity", 1 );

		function hasFilter( elem ) {
			return !!rfilter.exec( elem[ 0 ].style.cssText );
		}
		assert.expect( 2 );
		assert.ok( !hasFilter( test ), "Removed filter attribute on element without filter in stylesheet" );
		assert.ok( hasFilter( test2 ), "Filter attribute remains on element that had filter in stylesheet" );
	} );
}

QUnit.test( "css(String, Function)", function( assert ) {
	assert.expect( 3 );

	var index,
		sizes = [ "10px", "20px", "30px" ];

	jQuery( "<div id='cssFunctionTest'><div class='cssFunction'></div>" +
				 "<div class='cssFunction'></div>" +
				 "<div class='cssFunction'></div></div>" )
		.appendTo( "body" );

	index = 0;

	jQuery( "#cssFunctionTest div" ).css( "font-size", function() {
		var size = sizes[ index ];
		index++;
		return size;
	} );

	index = 0;

	jQuery( "#cssFunctionTest div" ).each( function() {
		var computedSize = jQuery( this ).css( "font-size" ),
			expectedSize = sizes[ index ];
		assert.equal( computedSize, expectedSize, "Div #" + index + " should be " + expectedSize );
		index++;
	} );

	jQuery( "#cssFunctionTest" ).remove();
} );

QUnit.test( "css(String, Function) with incoming value", function( assert ) {
	assert.expect( 3 );

	var index,
		sizes = [ "10px", "20px", "30px" ];

	jQuery( "<div id='cssFunctionTest'><div class='cssFunction'></div>" +
				 "<div class='cssFunction'></div>" +
				 "<div class='cssFunction'></div></div>" )
		.appendTo( "body" );

	index = 0;

	jQuery( "#cssFunctionTest div" ).css( "font-size", function() {
		var size = sizes[ index ];
		index++;
		return size;
	} );

	index = 0;

	jQuery( "#cssFunctionTest div" ).css( "font-size", function( i, computedSize ) {
		var expectedSize = sizes[ index ];
		assert.equal( computedSize, expectedSize, "Div #" + index + " should be " + expectedSize );
		index++;
		return computedSize;
	} );

	jQuery( "#cssFunctionTest" ).remove();
} );

QUnit.test( "css(Object) where values are Functions", function( assert ) {
	assert.expect( 3 );

	var index,
		sizes = [ "10px", "20px", "30px" ];

	jQuery( "<div id='cssFunctionTest'><div class='cssFunction'></div>" +
				 "<div class='cssFunction'></div>" +
				 "<div class='cssFunction'></div></div>" )
		.appendTo( "body" );

	index = 0;

	jQuery( "#cssFunctionTest div" ).css( { "fontSize": function() {
		var size = sizes[ index ];
		index++;
		return size;
	} } );

	index = 0;

	jQuery( "#cssFunctionTest div" ).each( function() {
		var computedSize = jQuery( this ).css( "font-size" ),
			expectedSize = sizes[ index ];
		assert.equal( computedSize, expectedSize, "Div #" + index + " should be " + expectedSize );
		index++;
	} );

	jQuery( "#cssFunctionTest" ).remove();
} );

QUnit.test( "css(Object) where values are Functions with incoming values", function( assert ) {
	assert.expect( 3 );

	var index,
		sizes = [ "10px", "20px", "30px" ];

	jQuery( "<div id='cssFunctionTest'><div class='cssFunction'></div>" +
				 "<div class='cssFunction'></div>" +
				 "<div class='cssFunction'></div></div>" )
		.appendTo( "body" );

	index = 0;

	jQuery( "#cssFunctionTest div" ).css( { "fontSize": function() {
		var size = sizes[ index ];
		index++;
		return size;
	} } );

	index = 0;

	jQuery( "#cssFunctionTest div" ).css( { "font-size": function( i, computedSize ) {
		var expectedSize = sizes[ index ];
		assert.equal( computedSize, expectedSize, "Div #" + index + " should be " + expectedSize );
		index++;
		return computedSize;
	} } );

	jQuery( "#cssFunctionTest" ).remove();
} );

QUnit.test( "show(); hide()", function( assert ) {
	assert.expect( 4 );

	var hiddendiv, div;

	hiddendiv = jQuery( "div.hidden" );
	hiddendiv.hide();
	equal( hiddendiv.css( "display" ), "none", "Non-detached div hidden" );
	hiddendiv.show();
	equal( hiddendiv.css( "display" ), "block", "Pre-hidden div shown" );

	div = jQuery( "<div>" ).hide();
	equal( div.css( "display" ), "none", "Detached div hidden" );
	div.appendTo( "#qunit-fixture" ).show();
	equal( div.css( "display" ), "block", "Pre-hidden div shown" );

} );

QUnit.test( "show();", function( assert ) {

	assert.expect( 18 );

	var hiddendiv, div, pass, test;
	hiddendiv = jQuery( "div.hidden" );

	assert.equal( jQuery.css( hiddendiv[ 0 ], "display" ), "none", "hiddendiv is display: none" );

	hiddendiv.css( "display", "block" );
	assert.equal( jQuery.css( hiddendiv[ 0 ], "display" ), "block", "hiddendiv is display: block" );

	hiddendiv.show();
	assert.equal( jQuery.css( hiddendiv[ 0 ], "display" ), "block", "hiddendiv is display: block" );

	hiddendiv.css( "display", "" );

	pass = true;
	div = jQuery( "#qunit-fixture div" );
	div.show().each( function() {
		if ( this.style.display === "none" ) {
			pass = false;
		}
	} );
	assert.ok( pass, "Show" );

	// #show-tests * is set display: none in CSS
	jQuery( "#qunit-fixture" ).append( "<div id='show-tests'><div><p><a href='#'></a></p><code></code><pre></pre><span></span></div><table><thead><tr><th></th></tr></thead><tbody><tr><td></td></tr></tbody></table><ul><li></li></ul></div>" );

	test = {
		"div": "block",
		"p": "block",
		"a": "inline",
		"code": "inline",
		"pre": "block",
		"span": "inline",
		"table": "table",
		"thead": "table-header-group",
		"tbody": "table-row-group",
		"tr": "table-row",
		"th": "table-cell",
		"td": "table-cell",
		"ul": "block",
		"li": "list-item"
	};

	jQuery.each( test, function( selector, expected ) {
		var elem = jQuery( selector, "#show-tests" ).show();
		assert.equal( elem.css( "display" ), expected, "Show using correct display type for " + selector );
	} );

	// Make sure that showing or hiding a text node doesn't cause an error
	jQuery( "<div>test</div> text <span>test</span>" ).show().remove();
	jQuery( "<div>test</div> text <span>test</span>" ).hide().remove();
} );

test( "show() resolves correct default display #8099", function() {
	expect( 7 );
	var tt8099 = jQuery( "<tt/>" ).appendTo( "body" ),
			dfn8099 = jQuery( "<dfn/>", { "html": "foo" } ).appendTo( "body" );

	equal( tt8099.css( "display" ), "none", "default display override for all tt" );
	equal( tt8099.show().css( "display" ), "inline", "Correctly resolves display:inline" );

	equal( jQuery( "#foo" ).hide().show().css( "display" ), "block", "Correctly resolves display:block after hide/show" );

	equal( tt8099.hide().css( "display" ), "none", "default display override for all tt" );
	equal( tt8099.show().css( "display" ), "inline", "Correctly resolves display:inline" );

	equal( dfn8099.css( "display" ), "none", "default display override for all dfn" );
	equal( dfn8099.show().css( "display" ), "inline", "Correctly resolves display:inline" );

	tt8099.remove();
	dfn8099.remove();
} );

QUnit.test( "show() resolves correct default display for detached nodes", function( assert ) {
	assert.expect( 13 );

	var div, span, tr, trDisplay;

	div = jQuery( "<div class='hidden'>" );
	div.show().appendTo( "#qunit-fixture" );
	equal( div.css( "display" ), "block", "Make sure a detached, pre-hidden( through stylesheets ) div is visible." );

	div = jQuery( "<div style='display: none'>" );
	div.show().appendTo( "#qunit-fixture" );
	equal( div.css( "display" ), "block", "Make sure a detached, pre-hidden( through inline style ) div is visible." );

	span = jQuery( "<span class='hidden'/>" );
	span.show().appendTo( "#qunit-fixture" );
	equal( span.css( "display" ), "inline", "Make sure a detached, pre-hidden( through stylesheets ) span has default display." );

	span = jQuery( "<span style='display: inline'/>" );
	span.show().appendTo( "#qunit-fixture" );
	equal( span.css( "display" ), "inline", "Make sure a detached, pre-hidden( through inline style ) span has default display." );

	div = jQuery( "<div><div class='hidden'></div></div>" ).children( "div" );
	div.show().appendTo( "#qunit-fixture" );
	equal( div.css( "display" ), "block", "Make sure a detached, pre-hidden( through stylesheets ) div inside another visible div is visible." );

	div = jQuery( "<div><div style='display: none'></div></div>" ).children( "div" );
	div.show().appendTo( "#qunit-fixture" );
	equal( div.css( "display" ), "block", "Make sure a detached, pre-hidden( through inline style ) div inside another visible div is visible." );

	div = jQuery( "div.hidden" );
	div.detach().show();

	equal( div.css( "display" ), "block", "Make sure a detached( through detach() ), pre-hidden div is visible." );
	div.remove();

	span = jQuery( "<span>" );
	span.appendTo( "#qunit-fixture" ).detach().show().appendTo( "#qunit-fixture" );
	equal( span.css( "display" ), "inline", "Make sure a detached( through detach() ), pre-hidden span has default display." );
	span.remove();

	div = jQuery( "<div>" );
	div.show().appendTo( "#qunit-fixture" );
	ok( !!div.get( 0 ).style.display, "Make sure not hidden div has a inline style." );
	div.remove();

	div = jQuery( document.createElement( "div" ) );
	div.show().appendTo( "#qunit-fixture" );
	equal( div.css( "display" ), "block", "Make sure a pre-created element has default display." );
	div.remove();

	div = jQuery( "<div style='display: inline'/>" );
	div.show().appendTo( "#qunit-fixture" );
	equal( div.css( "display" ), "inline", "Make sure that element has same display when it was created." );
	div.remove();

	tr = jQuery( "<tr/>" );
	jQuery( "#table" ).append( tr );
	trDisplay = tr.css( "display" );
	tr.detach().hide().show();

	equal( tr[ 0 ].style.display, trDisplay, "For detached tr elements, display should always be like for attached trs" );
	tr.remove();

	span = jQuery( "<span/>" ).hide().show();
	equal( span[ 0 ].style.display, "inline", "For detached span elements, display should always be inline" );
	span.remove();
} );

test( "show() resolves correct default display #10227", 4, function() {
	var htmlDisplay,
		html = jQuery( document.documentElement ),
		body = jQuery( "body" );

	body.append( "<p class='ddisplay'>a<style>body{display:none}</style></p>" );

	equal( body.css( "display" ), "none", "Initial display for body element: none" );

	body.show();
	equal( body.css( "display" ), "block", "Correct display for body element: block" );

	body.append( "<p class='ddisplay'>a<style>html{display:none}</style></p>" );

	equal( html.css( "display" ), "none", "Initial display for html element: none" );

	html.show();
	htmlDisplay = html.css( "display" );

	// Check for "inline" value needed for older browsers
	ok( "inline" === htmlDisplay || "block" === htmlDisplay, "Correct display for html element" );

	jQuery._removeData( body[ 0 ] );
	jQuery._removeData( html[ 0 ] );
	jQuery( ".ddisplay" ).remove();
} );

test( "show() resolves correct default display when iframe display:none #12904", function() {
	expect( 2 );

	var ddisplay = jQuery(
		"<p id='ddisplay'>a<style>p{display:none}iframe{display:none !important}</style></p>"
	).appendTo( "body" );

	equal( ddisplay.css( "display" ), "none", "Initial display: none" );

	ddisplay.show();
	equal( ddisplay.css( "display" ), "block", "Correct display: block" );

	ddisplay.remove();
} );

QUnit.test( "toggle()", function( assert ) {
	assert.expect( 9 );
	var div, oldHide,
		x = jQuery( "#foo" );

	assert.ok( x.is( ":visible" ), "is visible" );
	x.toggle();
	assert.ok( x.is( ":hidden" ), "is hidden" );
	x.toggle();
	assert.ok( x.is( ":visible" ), "is visible again" );

	x.toggle( true );
	assert.ok( x.is( ":visible" ), "is visible" );
	x.toggle( false );
	assert.ok( x.is( ":hidden" ), "is hidden" );
	x.toggle( true );
	assert.ok( x.is( ":visible" ), "is visible again" );

	div = jQuery( "<div style='display:none'><div></div></div>" ).appendTo( "#qunit-fixture" );
	x = div.find( "div" );
	assert.strictEqual( x.toggle().css( "display" ), "none", "is hidden" );
	assert.strictEqual( x.toggle().css( "display" ), "block", "is visible" );

	// Ensure hide() is called when toggled (#12148)
	oldHide = jQuery.fn.hide;
	jQuery.fn.hide = function() {
		assert.ok( true, name + " method called on toggle" );
		return oldHide.apply( this, arguments );
	};
	x.toggle( name === "show" );
	jQuery.fn.hide = oldHide;
} );

QUnit.test( "hide hidden elements (bug #7141)", function( assert ) {
	assert.expect( 3 );

	var div = jQuery( "<div style='display:none'></div>" ).appendTo( "#qunit-fixture" );
	assert.equal( div.css( "display" ), "none", "Element is hidden by default" );
	div.hide();
	ok( !jQuery._data( div, "olddisplay" ), "olddisplay is undefined after hiding an already-hidden element" );
	div.show();
	assert.equal( div.css( "display" ), "block", "Show a double-hidden element" );

	div.remove();
} );

QUnit.test( "jQuery.css(elem, 'height') doesn't clear radio buttons (bug #1095)", function( assert ) {
	assert.expect( 4 );

	var $checkedtest = jQuery( "#checkedtest" );
	jQuery.css( $checkedtest[ 0 ], "height" );

	assert.ok( jQuery( "input[type='radio']", $checkedtest ).first().attr( "checked" ), "Check first radio still checked." );
	assert.ok( !jQuery( "input[type='radio']", $checkedtest ).last().attr( "checked" ), "Check last radio still NOT checked." );
	assert.ok( jQuery( "input[type='checkbox']", $checkedtest ).first().attr( "checked" ), "Check first checkbox still checked." );
	assert.ok( !jQuery( "input[type='checkbox']", $checkedtest ).last().attr( "checked" ), "Check last checkbox still NOT checked." );
} );

QUnit.test( "internal ref to elem.runtimeStyle (bug #7608)", function( assert ) {
	assert.expect( 1 );
	var result = true;

	try {
		jQuery( "#foo" ).css( { "width": "0%" } ).css( "width" );
	} catch ( e ) {
		result = false;
	}

	assert.ok( result, "elem.runtimeStyle does not throw exception" );
} );

QUnit.test( "computed margins (trac-3333; gh-2237)", function( assert ) {
	assert.expect( 2 );

	var $div = jQuery( "#foo" ),
		$child = jQuery( "#en" );

	$div.css( {
		"width": "1px",
		"marginRight": 0
	} );
	assert.equal( $div.css( "marginRight" ), "0px",
		"marginRight correctly calculated with a width and display block" );

	$div.css( {
		position: "absolute",
		top: 0,
		left: 0,
		width: "100px"
	} );
	$child.css( {
		width: "50px",
		margin: "auto"
	} );
	assert.equal( $child.css( "marginLeft" ), "25px", "auto margins are computed to pixels" );
} );

QUnit.test( "box model properties incorrectly returning % instead of px, see #10639 and #12088", function( assert ) {
	assert.expect( 2 );

	var container = jQuery( "<div/>" ).width( 400 ).appendTo( "#qunit-fixture" ),
		el = jQuery( "<div/>" ).css( { "width": "50%", "marginRight": "50%" } ).appendTo( container ),
		el2 = jQuery( "<div/>" ).css( { "width": "50%", "minWidth": "300px", "marginLeft": "25%" } ).appendTo( container );

	assert.equal( el.css( "marginRight" ), "200px", "css('marginRight') returning % instead of px, see #10639" );
	assert.equal( el2.css( "marginLeft" ), "100px", "css('marginLeft') returning incorrect pixel value, see #12088" );
} );

QUnit.test( "jQuery.cssProps behavior, (bug #8402)", function( assert ) {
	assert.expect( 2 );

	var div = jQuery( "<div>" ).appendTo( document.body ).css( {
		"position": "absolute",
		"top": 0,
		"left": 10
	} );
	jQuery.cssProps.top = "left";
	assert.equal( div.css( "top" ), "10px", "the fixed property is used when accessing the computed style" );
	div.css( "top", "100px" );
	assert.equal( div[ 0 ].style.left, "100px", "the fixed property is used when setting the style" );

	// cleanup jQuery.cssProps
	jQuery.cssProps.top = undefined;
} );

QUnit.test( "widows & orphans #8936", function( assert ) {

	var $p = jQuery( "<p>" ).appendTo( "#qunit-fixture" );

	if ( "widows" in $p[ 0 ].style ) {
		assert.expect( 2 );

		$p.css( {
			"widows": 3,
			"orphans": 3
		} );

		assert.equal( $p.css( "widows" ) || jQuery.style( $p[ 0 ], "widows" ), 3, "widows correctly set to 3" );
		assert.equal( $p.css( "orphans" ) || jQuery.style( $p[ 0 ], "orphans" ), 3, "orphans correctly set to 3" );
	} else {

		assert.expect( 1 );
		assert.ok( true, "jQuery does not attempt to test for style props that definitely don't exist in older versions of IE" );
	}

	$p.remove();
} );

QUnit.test( "can't get css for disconnected in IE<9, see #10254 and #8388", function( assert ) {
	assert.expect( 2 );
	var span, div;

	span = jQuery( "<span/>" ).css( "background-image", "url(data/1x1.jpg)" );
	assert.notEqual( span.css( "background-image" ), null, "can't get background-image in IE<9, see #10254" );

	div = jQuery( "<div/>" ).css( "top", 10 );
	assert.equal( div.css( "top" ), "10px", "can't get top in IE<9, see #8388" );
} );

QUnit.test( "can't get background-position in IE<9, see #10796", function( assert ) {
	var div = jQuery( "<div/>" ).appendTo( "#qunit-fixture" ),
		units = [
			"0 0",
			"12px 12px",
			"13px 12em",
			"12em 13px",
			"12em center",
			"+12em center",
			"12.2em center",
			"center center"
		],
		l = units.length,
		i = 0;

	assert.expect( l );

	for ( ; i < l; i++ ) {
		div.css( "background-position", units [ i ] );
		assert.ok( div.css( "background-position" ), "can't get background-position in IE<9, see #10796" );
	}
} );

QUnit.test( "percentage properties for bottom and right in IE<9 should not be incorrectly transformed to pixels, see #11311", function( assert ) {
	assert.expect( 1 );
	var div = jQuery( "<div style='position: absolute; width: 1px; height: 20px; bottom:50%;'></div>" ).appendTo( "#qunit-fixture" );
	assert.ok( window.getComputedStyle || div.css( "bottom" ) === "50%", "position properties get incorrectly transformed in IE<8, see #11311" );
} );

if ( jQuery.fn.offset ) {
	QUnit.test( "percentage properties for left and top should be transformed to pixels, see #9505", function( assert ) {
		assert.expect( 2 );
		var parent = jQuery( "<div style='position:relative;width:200px;height:200px;margin:0;padding:0;border-width:0'></div>" ).appendTo( "#qunit-fixture" ),
			div = jQuery( "<div style='position: absolute; width: 20px; height: 20px; top:50%; left:50%'></div>" ).appendTo( parent );

		assert.equal( div.css( "top" ), "100px", "position properties not transformed to pixels, see #9505" );
		assert.equal( div.css( "left" ), "100px", "position properties not transformed to pixels, see #9505" );
	} );
}

QUnit.test( "Do not append px (#9548, #12990)", function( assert ) {
	assert.expect( 2 );

	var $div = jQuery( "<div>" ).appendTo( "#qunit-fixture" );

	$div.css( "fill-opacity", 1 );

	// Support: Android 2.3 (no support for fill-opacity)
	if ( $div.css( "fill-opacity" ) ) {
		assert.equal( $div.css( "fill-opacity" ), 1, "Do not append px to 'fill-opacity'" );
	} else {
		assert.ok( true, "No support for fill-opacity CSS property" );
	}

	$div.css( "column-count", 1 );
	if ( $div.css( "column-count" ) ) {
		assert.equal( $div.css( "column-count" ), 1, "Do not append px to 'column-count'" );
	} else {
		assert.ok( true, "No support for column-count CSS property" );
	}
} );

QUnit.test( "css('width') and css('height') should respect box-sizing, see #11004", function( assert ) {
	assert.expect( 4 );

	// Support: Android 2.3 (-webkit-box-sizing).
	var el_dis = jQuery( "<div style='width:300px;height:300px;margin:2px;padding:2px;-webkit-box-sizing:border-box;box-sizing:border-box;'>test</div>" ),
		el = el_dis.clone().appendTo( "#qunit-fixture" );

	assert.equal( el.css( "width" ), el.css( "width", el.css( "width" ) ).css( "width" ), "css('width') is not respecting box-sizing, see #11004" );
	assert.equal( el_dis.css( "width" ), el_dis.css( "width", el_dis.css( "width" ) ).css( "width" ), "css('width') is not respecting box-sizing for disconnected element, see #11004" );
	assert.equal( el.css( "height" ), el.css( "height", el.css( "height" ) ).css( "height" ), "css('height') is not respecting box-sizing, see #11004" );
	assert.equal( el_dis.css( "height" ), el_dis.css( "height", el_dis.css( "height" ) ).css( "height" ), "css('height') is not respecting box-sizing for disconnected element, see #11004" );
} );

testIframeWithCallback(
	"css('width') should work correctly before document ready (#14084)",
	"css/cssWidthBeforeDocReady.html",
	function( cssWidthBeforeDocReady, assert ) {
		assert.expect( 1 );
		assert.strictEqual( cssWidthBeforeDocReady, "100px", "elem.css('width') works correctly before document ready" );
	}
);

QUnit.test( "certain css values of 'normal' should be convertable to a number, see #8627", function( assert ) {
	expect( 3 );

	var el = jQuery( "<div style='letter-spacing:normal;font-weight:normal;'>test</div>" ).appendTo( "#qunit-fixture" );

	assert.ok( jQuery.isNumeric( parseFloat( el.css( "letterSpacing" ) ) ), "css('letterSpacing') not convertable to number, see #8627" );
	assert.ok( jQuery.isNumeric( parseFloat( el.css( "fontWeight" ) ) ), "css('fontWeight') not convertable to number, see #8627" );
	assert.equal( typeof el.css( "fontWeight" ), "string", ".css() returns a string" );
} );

// only run this test in IE9
if ( document.documentMode === 9 ) {
	QUnit.test( ".css('filter') returns a string in IE9, see #12537", function( assert ) {
		assert.expect( 1 );

		assert.equal( jQuery( "<div style='-ms-filter:\"progid:DXImageTransform.Microsoft.gradient(startColorstr=#FFFFFF, endColorstr=#ECECEC)\";'></div>" ).css( "filter" ), "progid:DXImageTransform.Microsoft.gradient(startColorstr=#FFFFFF, endColorstr=#ECECEC)", "IE9 returns the correct value from css('filter')." );
	} );
}

QUnit.test( "cssHooks - expand", function( assert ) {
	assert.expect( 15 );
	var result,
		properties = {
			margin: [ "marginTop", "marginRight", "marginBottom", "marginLeft" ],
			borderWidth: [ "borderTopWidth", "borderRightWidth", "borderBottomWidth", "borderLeftWidth" ],
			padding: [ "paddingTop", "paddingRight", "paddingBottom", "paddingLeft" ]
		};

	jQuery.each( properties, function( property, keys ) {
		var hook = jQuery.cssHooks[ property ],
			expected = {};
		jQuery.each( keys, function( _, key ) {
			expected[ key ] = 10;
		} );
		result = hook.expand( 10 );
		assert.deepEqual( result, expected, property + " expands properly with a number" );

		jQuery.each( keys, function( _, key ) {
			expected[ key ] = "10px";
		} );
		result = hook.expand( "10px" );
		assert.deepEqual( result, expected, property + " expands properly with '10px'" );

		expected[ keys[ 1 ] ] = expected[ keys[ 3 ] ] = "20px";
		result = hook.expand( "10px 20px" );
		assert.deepEqual( result, expected, property + " expands properly with '10px 20px'" );

		expected[ keys[ 2 ] ] = "30px";
		result = hook.expand( "10px 20px 30px" );
		assert.deepEqual( result, expected, property + " expands properly with '10px 20px 30px'" );

		expected[ keys[ 3 ] ] = "40px";
		result = hook.expand( "10px 20px 30px 40px" );
		assert.deepEqual( result, expected, property + " expands properly with '10px 20px 30px 40px'" );

	} );

} );

QUnit.test( "css opacity consistency across browsers (#12685)", function( assert ) {
	assert.expect( 4 );

	var el,
		fixture = jQuery( "#qunit-fixture" );

	// Append style element
	jQuery( "<style>.opacityWithSpaces_t12685 { opacity: 0.1; -ms-filter: 'alpha(opacity = 10)'; } .opacityNoSpaces_t12685 { opacity: 0.2; -ms-filter: 'alpha(opacity=20)'; }</style>" ).appendTo( fixture );

	el = jQuery( "<div class='opacityWithSpaces_t12685'></div>" ).appendTo( fixture );

	assert.equal( Math.round( el.css( "opacity" ) * 100 ), 10, "opacity from style sheet (-ms-filter:alpha with spaces)" );
	el.removeClass( "opacityWithSpaces_t12685" ).addClass( "opacityNoSpaces_t12685" );
	assert.equal( Math.round( el.css( "opacity" ) * 100 ), 20, "opacity from style sheet (-ms-filter:alpha without spaces)" );
	el.css( "opacity", 0.3 );
	assert.equal( Math.round( el.css( "opacity" ) * 100 ), 30, "override opacity" );
	el.css( "opacity", "" );
	assert.equal( Math.round( el.css( "opacity" ) * 100 ), 20, "remove opacity override" );
} );

QUnit.test( ":visible/:hidden selectors", function( assert ) {
	assert.expect( 17 );

	var $div, $table, $a;

	assert.ok( jQuery( "#nothiddendiv" ).is( ":visible" ), "Modifying CSS display: Assert element is visible" );
	jQuery( "#nothiddendiv" ).css( { display: "none" } );
	assert.ok( !jQuery( "#nothiddendiv" ).is( ":visible" ), "Modified CSS display: Assert element is hidden" );
	jQuery( "#nothiddendiv" ).css( { "display": "block" } );
	assert.ok( jQuery( "#nothiddendiv" ).is( ":visible" ), "Modified CSS display: Assert element is visible" );
	assert.ok( !jQuery( window ).is( ":visible" ), "Calling is(':visible') on window does not throw an exception (#10267)." );
	assert.ok( !jQuery( document ).is( ":visible" ), "Calling is(':visible') on document does not throw an exception (#10267)." );

	assert.ok( jQuery( "#nothiddendiv" ).is( ":visible" ), "Modifying CSS display: Assert element is visible" );
	jQuery( "#nothiddendiv" ).css( "display", "none" );
	assert.ok( !jQuery( "#nothiddendiv" ).is( ":visible" ), "Modified CSS display: Assert element is hidden" );
	jQuery( "#nothiddendiv" ).css( "display", "block" );
	assert.ok( jQuery( "#nothiddendiv" ).is( ":visible" ), "Modified CSS display: Assert element is visible" );

	assert.ok( jQuery( "#siblingspan" ).is( ":visible" ), "Span with no content is visible" );
	$div = jQuery( "<div><span></span></div>" ).appendTo( "#qunit-fixture" );
	assert.equal( $div.find( ":visible" ).length, 1, "Span with no content is visible" );
	$div.css( { width: 0, height: 0, overflow: "hidden" } );
	assert.ok( $div.is( ":visible" ), "Div with width and height of 0 is still visible (gh-2227)" );

	// Safari 6-7 and iOS 6-7 report 0 width for br elements
	// When newer browsers propagate, re-enable this test
	// $br = jQuery( "<br/>" ).appendTo( "#qunit-fixture" );
	// ok( $br.is( ":visible" ), "br element is visible" );

	$table = jQuery( "#table" );
	$table.html( "<tr><td style='display:none'>cell</td><td>cell</td></tr>" );
	assert.equal( jQuery( "#table td:visible" ).length, 1, "hidden cell is not perceived as visible (#4512). Works on table elements" );
	$table.css( "display", "none" ).html( "<tr><td>cell</td><td>cell</td></tr>" );
	assert.equal( jQuery( "#table td:visible" ).length, 0, "hidden cell children not perceived as visible (#4512)" );

	assert.t( "Is Visible", "#qunit-fixture div:visible:lt(2)", [ "foo", "nothiddendiv" ] );
	assert.t( "Is Not Hidden", "#qunit-fixture:hidden", [] );
	assert.t( "Is Hidden", "#form input:hidden", [ "hidden1", "hidden2" ] );

	$a = jQuery( "<a href='#'><h1>Header</h1></a>" ).appendTo( "#qunit-fixture" );
	assert.ok( $a.is( ":visible" ), "Anchor tag with flow content is visible (gh-2227)" );
} );

QUnit.test( "Keep the last style if the new one isn't recognized by the browser (#14836)", function( assert ) {
	assert.expect( 2 );

	var el;
	el = jQuery( "<div></div>" ).css( "position", "absolute" ).css( "position", "fake value" );
	assert.equal( el.css( "position" ), "absolute", "The old style is kept when setting an unrecognized value" );
	el = jQuery( "<div></div>" ).css( "position", "absolute" ).css( "position", " " );
	assert.equal( el.css( "position" ), "absolute", "The old style is kept when setting to a space" );
} );

QUnit.test( "Reset the style if set to an empty string", function( assert ) {
	assert.expect( 1 );
	var el = jQuery( "<div></div>" ).css( "position", "absolute" ).css( "position", "" );

	// Some browsers return an empty string; others "static". Both those cases mean the style
	// was reset successfully so accept them both.
	assert.equal( el.css( "position" ) || "static", "static",
		"The style can be reset by setting to an empty string" );
} );

QUnit.test(
	"Clearing a Cloned Element's Style Shouldn't Clear the Original Element's Style (#8908)",
	24,
	function( assert ) {
		var baseUrl = document.location.href.replace( /([^\/]*)$/, "" );
		var done = assert.async();
		var styles = [ {
				name: "backgroundAttachment",
				value: [ "fixed" ],
				expected: [ "scroll" ]
			}, {
				name: "backgroundColor",
				value: [ "rgb(255, 0, 0)", "rgb(255,0,0)", "#ff0000" ],
				expected: [ "transparent" ]
			}, {

				// Firefox returns auto's value
				name: "backgroundImage",
				value: [ "url('test.png')", "url(" + baseUrl + "test.png)", "url(\"" + baseUrl + "test.png\")" ],
				expected: [ "none", "url(\"http://static.jquery.com/files/rocker/images/logo_jquery_215x53.gif\")" ]
			}, {
				name: "backgroundPosition",
				value: [ "5% 5%" ],
				expected: [ "0% 0%", "-1000px 0px", "-1000px 0%" ]
			}, {

				// Firefox returns no-repeat
				name: "backgroundRepeat",
				value: [ "repeat-y" ],
				expected: [ "repeat", "no-repeat" ]
			}, {
				name: "backgroundClip",
				value: [ "padding-box" ],
				expected: [ "border-box" ]
			}, {
				name: "backgroundOrigin",
				value: [ "content-box" ],
				expected: [ "padding-box" ]
			}, {
				name: "backgroundSize",
				value: [ "80px 60px" ],
				expected: [ "auto auto" ]
		} ];

		jQuery.each( styles, function( index, style ) {
			var $clone, $clonedChildren,
				$source = jQuery( "#firstp" ),
				source = $source[ 0 ],
				$children = $source.children();

			style.expected = style.expected.concat( [ "", "auto" ] );

			if ( source.style[ style.name ] === undefined ) {
				assert.ok( true, style.name +  ": style isn't supported and therefore not an issue" );
				assert.ok( true );
				assert.ok( true );
				return true;
			}

			$source.css( style.name, style.value[ 0 ] );
			$children.css( style.name, style.value[ 0 ] );

			$clone = $source.clone();
			$clonedChildren = $clone.children();

			$clone.css( style.name, "" );
			$clonedChildren.css( style.name, "" );

			window.setTimeout( function() {
				assert.notEqual( $clone.css( style.name ), style.value[ 0 ], "Cloned css was changed" );

				assert.ok( jQuery.inArray( $source.css( style.name ) !== -1, style.value ),
					"Clearing clone.css() doesn't affect source.css(): " + style.name +
					"; result: " + $source.css( style.name ) +
					"; expected: " + style.value.join( "," ) );

				assert.ok( jQuery.inArray( $children.css( style.name ) !== -1, style.value ),
					"Clearing clonedChildren.css() doesn't affect children.css(): " + style.name +
					"; result: " + $children.css( style.name ) +
					"; expected: " + style.value.join( "," ) );
			}, 100 );
		} );

		window.setTimeout( done, 1000 );
	}
);

QUnit.test( "show() after hide() should always set display to initial value (#14750)", function( assert ) {
	assert.expect( 1 );

	var div = jQuery( "<div />" ),
		fixture = jQuery( "#qunit-fixture" );

	fixture.append( div );

	div.css( "display", "inline" ).hide().show().css( "display", "list-item" ).hide().show();
	assert.equal( div.css( "display" ), "list-item", "should get last set display value" );
} );

asyncTest( "Make sure initialized display value for disconnected nodes is correct (#13310)", 4, function() {
	var display = jQuery( "#display" ).css( "display" ),
		div = jQuery( "<div/>" );

	equal( div.css( "display", "inline" ).hide().show().appendTo( "body" ).css( "display" ), "inline", "Initialized display value has returned" );
	div.remove();

	div.css( "display", "none" ).hide();
	equal( jQuery._data( div[ 0 ], "olddisplay" ), undefined, "olddisplay is undefined after hiding a detached and hidden element" );
	div.remove();

	div.css( "display", "inline-block" ).hide().appendTo( "body" ).fadeIn( function() {
		equal( div.css( "display" ), "inline-block", "Initialized display value has returned" );
		div.remove();

		start();
	} );

	equal( jQuery._data( jQuery( "#display" ).css( "display", "inline" ).hide()[ 0 ], "olddisplay" ), display,
	"display: * !Important value should used as initialized display" );
	jQuery._removeData( jQuery( "#display" )[ 0 ] );
} );

QUnit.test( "show() after hide() should always set display to initial value (#14750)", 1, function( assert ) {
	var div = jQuery( "<div />" ),
		fixture = jQuery( "#qunit-fixture" );

	fixture.append( div );

	div.css( "display", "inline" ).hide().show().css( "display", "list-item" ).hide().show();
	assert.equal( div.css( "display" ), "list-item", "should get last set display value" );
} );

// Support: IE < 11
// We have to jump through the hoops here in order to test work with "order" CSS property,
// that some browsers do not support. This test is not, strictly speaking, correct,
// but it's the best that we can do.
( function() {
	var style = document.createElement( "div" ).style,
		exist = "order" in style || "WebkitOrder" in style;

	if ( exist ) {
		QUnit.test( "Don't append px to CSS \"order\" value (#14049)", function( assert ) {
			assert.expect( 1 );

			var $elem = jQuery( "<div/>" );

			$elem.css( "order", 2 );
			assert.equal( $elem.css( "order" ), "2", "2 on order" );
		} );
	}
} )();

QUnit.test( "Do not throw on frame elements from css method (#15098)", function( assert ) {
	assert.expect( 1 );

	var frameWin, frameDoc,
		frameElement = document.createElement( "iframe" ),
		frameWrapDiv = document.createElement( "div" );

	frameWrapDiv.appendChild( frameElement );
	document.body.appendChild( frameWrapDiv );
	frameWin = frameElement.contentWindow;
	frameDoc = frameWin.document;
	frameDoc.open();
	frameDoc.write( "<!doctype html><html><body><div>Hi</div></body></html>" );
	frameDoc.close();

	frameWrapDiv.style.display = "none";

	try {
		jQuery( frameDoc.body ).css( "direction" );
		assert.ok( true, "It didn't throw" );
	} catch ( _ ) {
		assert.ok( false, "It did throw" );
	}
} );

QUnit.test( "get upper case alpha opacity in IE8", function( assert ) {
	assert.expect( 1 );

	var div = document.createElement( "div" ),
		fixture = document.getElementById( "qunit-fixture" );

	div.className = "fix-get-alpha-opacity-in-ie8";
	fixture.appendChild( div );

	assert.equal( jQuery( div ).css( "opacity" ), "0.5", "get upper case alpha opacity in IE8 ok" );

	fixture.removeChild( div );
} );

( function() {
	var vendorPrefixes = [ "Webkit", "Moz", "ms" ];

	function resetCssPropsFor( name ) {
		delete jQuery.cssProps[ name ];
		jQuery.each( vendorPrefixes, function( index, prefix ) {
			delete jQuery.cssProps[ prefix + name[ 0 ].toUpperCase() + name.slice( 1 ) ];
		} );
	}

	QUnit.test( "Don't default to a cached previously used wrong prefixed name (gh-2015)", function( assert ) {

		// Note: this test needs a property we know is only supported in a prefixed version
		// by at least one of our main supported browsers. This may get out of date so let's
		// use -(webkit|moz)-appearance as well as those two are not on a standards track.
		var appearanceName, transformName, elem, elemStyle,
			transformVal = "translate(5px, 2px)",
			emptyStyle = document.createElement( "div" ).style;

		if ( "appearance" in emptyStyle ) {
			appearanceName = "appearance";
		} else {
			jQuery.each( vendorPrefixes, function( index, prefix ) {
				var prefixedProp = prefix + "Appearance";
				if ( prefixedProp in emptyStyle ) {
					appearanceName = prefixedProp;
				}
			} );
		}

		if ( "transform" in emptyStyle ) {
			transformName = "transform";
		} else {
			jQuery.each( vendorPrefixes, function( index, prefix ) {
				var prefixedProp = prefix + "Transform";
				if ( prefixedProp in emptyStyle ) {
					transformName = prefixedProp;
				}
			} );
		}

		assert.expect( !!appearanceName + !!transformName + 1 );

		resetCssPropsFor( "appearance" );
		resetCssPropsFor( "transform" );

		elem = jQuery( "<div/>" )
			.css( {
				msAppearance: "none",
				appearance: "none",

				// Only the ms prefix is used to make sure we haven't e.g. set
				// webkitTransform ourselves in the test.
				msTransform: transformVal,
				transform: transformVal
			} );
		elemStyle = elem[ 0 ].style;

		if ( appearanceName ) {
			assert.equal( elemStyle[ appearanceName ], "none", "setting properly-prefixed appearance" );
		}
		if ( transformName ) {
			assert.equal( elemStyle[ transformName ], transformVal, "setting properly-prefixed transform" );
		}
		assert.equal( elemStyle[ "undefined" ], undefined, "Nothing writes to node.style.undefined" );
	} );

	QUnit.test( "Don't detect fake set properties on a node when caching the prefixed version", function( assert ) {
		assert.expect( 1 );

		var elem = jQuery( "<div/>" ),
			style = elem[ 0 ].style;
		style.MozFakeProperty = "old value";
		elem.css( "fakeProperty", "new value" );

		assert.equal( style.MozFakeProperty, "old value", "Fake prefixed property is not cached" );
	} );

} )();

}