<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
/*固定在页面某一位置*/
#a{
20px;
height: 20px;
background-color: black;
position: fixed;
bottom: 10px;
left: 10px;
}
/*相对于原位置所做的位移*/
#b{
80px;
height: 80px;
background-color: red;
position: relative;
top: 60px;
left: 60px;
}
/*相对于上一级界面做的位移*/
#c{
20px;
height: 20px;
background-color: #8A2BE2;
position: absolute;
bottom: 30px;
left: 30px;
}
/*浮动,向左*/
#d{
20px;
height: 20px;
background-color: black;
float: left;
}
/*浮动,向右*/
#e{
20px;
height: 20px;
background-color: green;
float: right;
}
/*清除上面div的格式影响*/
.clear{
clear: both;
}
</style>
</head>
<body>
<div id="a">
</div>
<div id="b">
</div>
<div id="c">
</div>
<div class="clear"></div>
<div id="d">
</div>
<div id="e">
</div>
</body>
</html>