If you look at twitter.com, the interface (sign up boxes, login boxes) follows the screen with the background being scrolled.
I have tried to search all over the internet (and trying to find the exact query for it) but i could not find the answer.
Has someone out there, done it?
位置：固定
jsFiddle：http: //jsfiddle.net/jplahn/MBD6C/
HTML：
<body>
<div id="banner">This is the banner</div>
<div class="content"></div>
</body>
CSS：
#banner {
border: 5px solid black;
background-color: red;
width: 100%;
height: 30px;
position: fixed;
top: 0px;
}
.content {
height: 1000px;
background-color: yellow;
overflow: auto;
}