It is pretty simple.
here is the code
<html>
<head>
<style type="text/css">
#left {
float: left;
width: 150px;
border: 1px solid black;
background-color: #999;
height: 50px;
}
#right {
float: right;
width: 150px;
border: 1px solid black;
background-color: #999;
height: 50px;
}
#center {
margin: 0 160px;
border: 1px solid black;
height: 50px;
}
</style>
</head>
<body>
<div id="left">Text</div>
<div id="right">Text</div>
<div id="center">Text</div>
</body>
</html>
float absolute. , div, , . : , .
<html>
<head>
<style type="text/css">
#left {
float: left;
width: 150px;
border: 1px solid black;
background-color: #999;
height: 50px;
}
#right {
float: right;
width: 150px;
border: 1px solid black;
background-color: #999;
height: 50px;
}
#center {
margin: 0 160px;
border: 1px solid black;
height: 50px;
}
#footer {
clear: both;
margin-top: 10px;
border: 1px solid black;
}
</style>
</head>
<body>
<div id="left">Text</div>
<div id="right">Text</div>
<div id="center">Text</div>
<div id="footer">footer</div>
</body>
</html>
Voila! .