设置CSS可以容纳的最小宽度
的最小宽度属性用于设置的最小宽度，一个盒即可。min-width属性的值可以是数字，长度或百分比。
示例
<html>
<head>
</head>
<body>
<p style = "min-width:400px; height:100px; border:1px solid red; padding:5px; margin:10px;">
This paragraph is 100px high and min width is 400px
This paragraph is 100px high and min width is 400px
</p>
<img alt = "logo" src = "/css/images/css.gif" width = "100" height = "100" />
</body>
</html>