为什么鼠标移开的时候不能回移？

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all{ margin:0; padding:0;}
div{ background-color:red; width:200px; height:300px; left:-200px; position:relative;}
span{ background-color:blue;width:20px; height:40px; position:absolute;left:200px; color:#FFF; top:75px;}
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                a.style.left=a.offsetLeft+ 1 +'px';
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qq_吃药先森_03169839

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qq_青枣工作室_0

div{ background-color:red; width:200px; height:300px; left:-200px; position:relative;}这里的 position:relative 要改为 position:absolute;

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