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A ceiling bar or something.

Source: Internet
Author: User
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<! DOCTYPE html>
<style>
*{margin:0;padding:0;list-style:none;}
body{
width:1180px;
margin:0 Auto;
}
. head{
width:100%;
height:60px;
background:red;
}
. main{
margin:30px 0;
height:100%;
Overflow:hidden;

}
. foot{
width:100%;
height:40px;
Background: #000;
Clear:both;
}
. left{
Float:left;
width:210px;
height:1300px;
border:1px solid red;
Background:green;
}

. right{
Float:right;
width:930px;
height:900px;
border:1px solid red;
Background: #ccc;

}
</style>
<!--
<script>
(function () {
Window.onresize=window.onscroll=window.onload=function () {
var Odiv=document.getelementbyid (' Form-wrap ');
var Scrolltop=document.documentelement.scrolltop | | Document.body.scrollTop;
var clientheight=document.documentelement.clientheight;
var t=document.body.scrollheight;
var bodyh= scrolltop+clientheight;
if (Math.Abs (BODYH-T) < 5) {
Odiv.style.bottom= ' 40px ';
}else{
odiv.style.bottom= ' 0px ';
}
};
})();
</script>
-
<script>
Window.onload= window.onscroll=function () {
var oleft = document.getElementById (' left ');
var oright = document.getElementById (' right ');
var scrolltop = Document.documentElement.scrollTop | | Document.body.scrollTop;

When the left height is the highest of right
if (Oleft.offsetheight >oright.offsetheight) {
OLeft.style.height =getstyle (oright, ' height ') + ' px ';
}

When the left scrolltop is 0,fixed
if (ScrollTop > Oleft.offsettop) {
oLeft.style.position = ' fixed ';
OLeft.style.top = ' 0 ';
if (oleft.offsetheight<oright.offsetheight) {
OLeft.style.height =getstyle (oright, ' height ') + ' px ';
}else{
OLeft.style.height =document.documentelement.clientheight-70 + ' px ';
}
}else{
OLeft.style.position = ";
}

function GetStyle (obj,name) {
Return Obj.currentstyle? Obj.currentstyle[name]: getComputedStyle (obj, false) [name];
}

}
</script>
<body>
<div class= "Head" ></div>
<div class= "Main" >
<div class= "left" id= "left" >
<ul>
<li> Menu 1</li>
<li> Menu 2</li>
<li> Menu 3</li>
<li> Menu 4</li>
<li> Menu 5</li>
</ul>
</div>
<div class= "Right" id= "OK" > here is the content </div>
</div>
<div class= "Foot" ></div>
</body>

A ceiling bar or something.

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

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