diff --git a/ui/ui.slider.js b/ui/ui.slider.js
index b304843bf..ff7d1ce0c 100644
--- a/ui/ui.slider.js
+++ b/ui/ui.slider.js
@@ -46,13 +46,15 @@ $.widget("ui.slider", $.extend({}, $.ui.mouse, {
 
 			this.range
 				.appendTo(this.element)
-				.addClass("ui-slider-range"
-					+ " ui-widget-header");
+				.addClass("ui-slider-range");
 
-			(o.range == "min") && (this.orientation == "horizontal") && this.range.css({ left : 0 });
-			(o.range == "max") && (this.orientation == "horizontal") && this.range.css({ right : 0 });
-			(o.range == "min") && (this.orientation == "vertical") && this.range.css({ bottom : 0 });
-			(o.range == "max") && (this.orientation == "vertical") && this.range.css({ top : 0 });
+			if (o.range == "min" || o.range == "max") {
+				this.range.addClass("ui-slider-range-" + o.range);
+			}
+
+			// note: this isn't the most fittingly semantic framework class for this element,
+			// but worked best visually with a variety of themes
+			this.range.addClass("ui-widget-header");
 
 		}
 
@@ -464,10 +466,10 @@ $.widget("ui.slider", $.extend({}, $.ui.mouse, {
 			var _set = {}; _set[self.orientation == 'horizontal' ? 'left' : 'bottom'] = valPercent + '%';
 			this.handle.stop(1,1)[animate ? 'animate' : 'css'](_set, o.animate);
 
-			(oRange == "min") && (this.orientation == "horizontal") && this.range.stop(1,1)[animate ? 'animate' : 'css']({ left: 0, width: valPercent + '%' }, o.animate);
-			(oRange == "max") && (this.orientation == "horizontal") && this.range[animate ? 'animate' : 'css']({ left: valPercent + '%', width: (100 - valPercent) + '%' }, { queue: false, duration: o.animate });
-			(oRange == "min") && (this.orientation == "vertical") && this.range.stop(1,1)[animate ? 'animate' : 'css']({ top: (100 - valPercent) + '%', height: valPercent + '%' }, o.animate);
-			(oRange == "max") && (this.orientation == "vertical") && this.range[animate ? 'animate' : 'css']({ bottom: valPercent + '%', height: (100 - valPercent) + '%' }, { queue: false, duration: o.animate });
+			(oRange == "min") && (this.orientation == "horizontal") && this.range.stop(1,1)[animate ? 'animate' : 'css']({ width: valPercent + '%' }, o.animate);
+			(oRange == "max") && (this.orientation == "horizontal") && this.range[animate ? 'animate' : 'css']({ width: (100 - valPercent) + '%' }, { queue: false, duration: o.animate });
+			(oRange == "min") && (this.orientation == "vertical") && this.range.stop(1,1)[animate ? 'animate' : 'css']({ height: valPercent + '%' }, o.animate);
+			(oRange == "max") && (this.orientation == "vertical") && this.range[animate ? 'animate' : 'css']({ height: (100 - valPercent) + '%' }, { queue: false, duration: o.animate });
 		}
 
 	},