Added CSS class and added mobile "support".

Added the CSS class "multiselect" do add additional styling using CSS.
Fixed #23. Added a possible solution for mobile devices.

README.md

@@ -152,6 +152,8 @@ The width can be defined using all formats accepted by CSS:
 	50%
 	auto
 	
+If the width is defined using CSS the option should be set to false.
+	
 **buttonText**
 
 Defining the text of the button. Must be a function returning a string. All currently selected options are passed as parameter.
@@ -224,6 +226,17 @@ Refresh the selected elements depending on the selected options within the selec
 
 Rebuilds the whole dropdown menu. Selected options will still be selected.
 
+## Additional Styling
+
+Additional Styling can be done using the multiselect class:
+
+	.multiselect {
+		text-align: left;
+	}
+	.multiselect b.caret {
+		float: right;
+	}
+
 ## Knockout JS Support
 
 Thanks to [Devristo](https://github.com/Devristo) this plugin supports [Knockout JS](http://knockoutjs.com/). For further discussion see [the pull requests](https://github.com/davidstutz/bootstrap-multiselect/pull/17).

js/bootstrap-multiselect.js

@@ -53,10 +53,26 @@
 		
 		this.options = this.getOptions(options);
         this.select = $(select);
+        
+        // Manually add the multiple attribute, if its not already set.
+        if (!this.select.attr('multiple')) {
+            this.select.attr('multiple', true);
+        }
+        
+        if (this.isMobile()) {
+			this.select.attr('rows', 1);
+		}
+		
         this.container = $(this.options.buttonContainer)
-            .append('<button type="button" class="dropdown-toggle ' + this.options.buttonClass + '" data-toggle="dropdown">' + this.options.buttonText($('option:selected', select)) + '</button>')
+            .append('<button type="button" class="multiselect dropdown-toggle ' + this.options.buttonClass + '" data-toggle="dropdown">' + this.options.buttonText($('option:selected', select)) + '</button>')
             .append('<ul class="dropdown-menu"></ul>');
 
+		if (this.options.buttonWidth) {
+			$('button', this.container).css({
+				'width': this.options.buttonWidth
+			});
+		}
+
         // Set max height of dropdown menu to activate auto scrollbar.
         if (this.options.maxHeight) {
             $('ul', this.container).css({
@@ -66,11 +82,6 @@
             });
         }
 
-        // Manually add the multiple attribute, if its not already set.
-        if (!this.select.attr('multiple')) {
-            this.select.attr('multiple', true);
-        }
-
         this.buildDrowdown(select, this.options);
 
         this.select
@@ -111,6 +122,10 @@
             maxHeight: 400
         },
 		
+		isMobile: function() {
+		   	return navigator.userAgent.match(/Android|webOS|iPhone|iPad|iPod|BlackBerry/i);
+		},
+
         constructor: Multiselect,
 
 		buildDrowdown: function(select, options){