为什么没有反应，旋转也没有
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<title>css3绚丽照片墙</title>
<style type="text/css">
h1{text-align:center}
div{width:960px;height:450px;margin:60px auto;position:relative}
body{background:#B3D0D2;}
img{padding:10px 20px 10px;background:#fff;border:2px solid #ddd;position:absolute;top:50px;left:200px;
-webkit-transform:rotate(20deg);
img:hover{-webkit-transform:rotate(0deg) scale(1.20);-webkit-transition:2s；-webkit-transform:rotate(0deg) scale(1.20);-webkit-transition:2s;}
}
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<body>
<h1>css3绚丽照片墙<h1>
<div>
<img class="a a1" src="image/i1.jpg"></img>
<img class="a a2" src="image/i2.jpg"></img>
<img class="a a3" src="image/i3.jpg"></img>
<img class="a a4" src="image/i4.jpg"></img>
<img class="a a5" src="image/i5.jpg"></img>
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