“^”开头字母匹配；“$”结尾字符匹配；“*”包含字符匹配
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>在页面上使用google地图示例</title>
<style type="text/css">
[id="qq"]{ background:red}
[id^="b"]{ background:yellow}
[id$="c"]{ background:green}
[id*="f"]{ background:orange}
</style>
</head>
<body>
<div>test</div>
<div id="qq">这个是指定ID情况下的样式</div>
<div id="begin">这个是用来测试开头字符为“b”</div>
<div id="cc">这个是用来测试结尾字符为“c”</div>
<div id="fcq">这个是用来测试id中含有"f".</div>
</body>
</html>
<div class="line_01">小小分隔线 单标签实现</div>
.demo_line_01{padding: 0 20px 0
margin: 20px 0
line-height: 1px
border-left: 200px solid #ddd
border-right: 200px solid #ddd
text-align: center
<div class="line_02"><span>小小分隔线 巧用色实现</span></div>
.demo_line_02{height: 1px
border-top: 1px solid #ddd
text-align: center
}
.demo_line_02 span{
position: relative
top: -8px
background: #fff
padding: 0 20px
}
<div class="line_03"><b></b><span>小小分隔线 inline-block实现</span><b></b></div>
.demo_line_03{width:600px
}
.demo_line_03 b{
background: #ddd
margin-top: 4px
display: inline-block
width: 180px
height: 1px
_overflow: hidden
vertical-align: middle
}
.demo_line_03 span{
display: inline-block
width: 220px
vertical-align: middle
}
