上代码：
<!DOCTYPE>
<html>
<head>
<style>
body {
padding: 0;
margin: 0;
background-color: #fff;
}
.contanir{
height: 300px;
width: 400px;
position: relative;
}
.red {
position:absolute;
background-color: #f00;
height: 30%;
width: 10%;
left: 0;
top:210px;
margin-right: 20px;
}
.gray {
background-color: #ddd;
position:absolute;
left: 50px;
top: 60px;
height: 80%;
width: 10%;
margin-right: 20px;
}
.green{
position:absolute;
left: 100px;
top: 90px;
background-color: #0fd;
height: 70%;
width: 10%;
margin-right: 20px;
}
.yellow{
position:absolute;
left: 150px;
top: 120px;
background-color: #ff0;
height: 60%;
width: 10%;
margin-right: 20px;
}
.black{
position:absolute;
left: 200px;
top: 30px;
background-color: #234;
height: 90%;
width: 10%;
margin-right: 20px;
}
</style>
</head>
<body>
<div class="contanir" style="">
<div class="red"></div>
<div class="gray"></div>
<div class="green"></div>
<div class="yellow"></div>
<div class="black"></div>
</div>
</body>
</html>