Question

css3过渡请教，背景颜色过渡失效，请问怎么写

a:link{
display: block;
width: 50px;
height: 50px;
background-color: #66CCFF;
margin:5px;
-webkit-border-radius:50px;
-moz-border-radius:50px;
border-radius:50px;
-webkit-transition: background-color 5s;
transition: background-color 5s;
-webkit-transition: width 3s;
transition: width 3s;
}
a:hover{
background-color: #9933FF;
width:200px;
}

Answer 1

                                display: block;
				width: 50px;
				height: 50px;
				background-color: #66CCFF;
				margin:5px;
				-webkit-border-radius:50px;
				-moz-border-radius:50px;
				border-radius:50px;
				transition: background-color 5s,width 3s;
				-webkit-transition: background-color 5s,width 3s;
				

改成这样。。。。