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2015-01-23
<span class="firse">简单</span>
.first{
color:green;}
结果不对,两个span还是红色
.first{
color:green;}
结果不对,两个span还是红色
2015-01-23
<html>
<body>
<h1>Hello World</h1>
</body>
</html>
<body>
<h1>Hello World</h1>
</body>
</html>
2015-01-23
直接用<input type="password" name="pass" />就可以为什么上一页还要用lable?
2015-01-22