abstract：<!DOCTYPE html><html><head> <meta charset="utf-8"> <title>css</title> <style type="text/css"> ul li{ list-style: none;width: 80px;heigh
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>css</title>
<style type="text/css">
ul li{
list-style: none;width: 80px;height: 40px;line-height: 40px;text-align: center;background-color: #ccc;margin: 0px 1px;float: left;
}
b{
background: #ccc;
}
/*清除浮动*/
.clear{
clear: both;
}
</style>
</head>
<body>
<ul>
<li>html</li>
<li>css</li>
<li>java</li>
<li>jquery</li>
<li>php</li>
</ul>
<div class="clear"></div>
<b>PHP中文网</b>
<b>PHP中文网</b>
<b>PHP中文网</b>
<b>PHP中文网</b>
<b>PHP中文网</b>
</body>
</html>
Correcting teacher：西门大官人Correction time：2019-04-22 10:02:59
Teacher's summary：思考一下，css中为什么要浮动，为什么又要清除浮动