<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>全兼容的HTML九宫格布局</title> <meta http-equiv="X-UA-Compatible" content="IE=edge"> </head> <body> <html> <head> <style type="text/css"> /** 重置浏览器默认标签样式 */ body,ul,li{margin:0padding:0} .xttblog{width: 1200px height: 170px margin-top:50px margin-left: auto margin-right: auto } .box{margin-left: 5pxmargin-top: 5pxlist-style-type:none} .box:after{content: "." display: block line-height: 0 width:0 height: 0 clear: both visibility: hidden overflow: hidden } .box li{float:leftline-height: 230px} .box li a,.box li a:visited{display:block border: 5px solid #ccc width: 380px height: 230px text-align: center margin-left: -5px margin-top: -5px position: relative z-index: 1 } .box li a:hover{border-color: #f00z-index: 2} </style> </head> <body> <div class="xttblog"> <ul class="box"> <li><a href="#" title="1"><img src="sh.jpg"/></a></li> <li><a href="#" title="2"><img src="bd.jpg"/></a></li> <li><a href="#" title="3"><img src="tb.jpg"/></a></li> <li><a href="#" title="4"><img src="fh.jpg"/></a></li> <li><a href="#" title="5"><img src="tb.jpg"/></a></li> <li><a href="#" title="6"><img src="tb.jpg"/></a></li> <li><a href="#" title="7"><img src="tb.jpg"/></a></li> <li><a href="#" title="8"><img src="tb.jpg"/></a></li> <li><a href="#" title="9"><img src="tb.jpg"/></a></li> </ul> </div> </body> </html> 源码，有些不一样，自己改下，html+css不懂得话，得自学下，这个是很简单的了，可以看下php中文网的一些课程，我自己也是自学的，网楼主采纳！<!DOCTYPE html>
<html>
<head>
<meta charset="GBK">
<title>test</title>
<style type="text/css">
*{
box-sizing: border-box
margin: 0
padding: 0
}
.container{
width: 90px
height: 90px
}
.item{
width: 30px
height: 30px
display: block
float: left
}
</style>
</head>
<body>
<div class="container">
<div class="item"></div>
<div class="item"></div>
<div class="item"></div>
<div class="item"></div>
<div class="item"></div>
<div class="item"></div>
<div class="item"></div>
<div class="item"></div>
<div class="item"></div>
</div>
</body>
</html>
<script type="text/javascript">
var items = document.querySelectorAll('.item')
Array.prototype.slice.call(items, 0).forEach(function(item){
item.style.backgroundColor = '#'+(~~(Math.random()*(1<<24))).toString(16)
})
</script>
