<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>jQuery UI Effects - addClass demo</title> <link rel="stylesheet" href="../../themes/base/all.css"> <link rel="stylesheet" href="../demos.css"> <style> .toggler { width: 500px; height: 200px; position: relative; } #button { padding: .5em 1em; text-decoration: none; } #effect { width: 240px; padding: 1em; border: 1px solid #000; background: #eee; color: #333; } .newClass { text-indent: 40px; letter-spacing: .4em; width: 410px; height: 120px; padding: 30px; margin: 10px; font-size: 1.1em; } </style> <script src="../../external/requirejs/require.js"></script> <script src="../bootstrap.js"> $( "#button" ).on( "click", function() { $( "#effect" ).addClass( "newClass", 1000, callback ); }); function callback() { setTimeout(function() { $( "#effect" ).removeClass( "newClass" ); }, 1500 ); } </script> </head> <body> <div class="toggler"> <div id="effect" class="ui-corner-all"> Etiam libero neque, luctus a, eleifend nec, semper at, lorem. Sed pede. </div> </div> <button id="button" class="ui-state-default ui-corner-all">Run Effect</button> <div class="demo-description"> <p>This demo adds a class which animates: text-indent, letter-spacing, width, height, padding, margin, and font-size.</p> </div> </body> </html>