css vertical-align 设置元垂直居中

编辑代码
<!DOCTYPE html>
<html>
<head>
<style>
img.top {vertical-align:text-top;}
img.bottom {vertical-align:text-bottom;}
</style>
</head>

<body>
<p>An <img src="/Public/images/logo.gif" alt="码农教程" /> 
image with a default alignment.</p> 
<p>An <img class="top" src="/Public/images/logo.gif" alt="码农教程"  /> 
image with a text-top alignment.</p> 
<p>An <img class="bottom" src="/Public/images/logo.gif" alt="码农教程"  /> 
image with a text-bottom alignment.</p>
</body>
</html>