css points

<style type="text/css" rel="stylesheet"> .a{ width:500px; height:400px;对放置图片的div区域设置宽和高 border:1px solid red; } *{ margin:0px; padding:0px; } </style> <div class="a"> <img src="oYYBAFWV2zaIKeRmAAEOr_0

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