divcss 如何实现左右分栏，左侧菜单能展开隐藏

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divcss 如何实现左右分栏，左侧菜单能展开隐藏,第1张

兄弟,div实现不了100%高度,最多只能自适应高度.你还是在iframe上定高度吧

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<html>

<head>

<title>左右分栏</title>

<meta http-equiv="Content-Type" content="text/htmlcharset=gb2312">

<meta content="MSHTML 6.00.2900.2180" name="GENERATOR">

<script language="JavaScript">

//左右

function switchSysBarl(){

var imgsrc

imgsrc=document.all("makeleft").src

document.all("makeleft").src="img/menu_open.gif"

document.all("makeleft").title="显示左边的菜单"

parent.document.all("bbs_left").style.display="none"

}

else{

document.all("makeleft").src="img/menu_close.gif"

document.all("makeleft").title="隐藏左边的菜单"

parent.document.all("bbs_left").style.display=""

}

}

</script>

<link rel="shortcut icon" href="favicon.ico">

</head>

<body bottommargin="0" leftmargin="0" topmargin="0" scroll="no" rightmargin="0">

<div style="z-index: 2visibility: inheritwidth: autoheight: autofloat: left"

frameborder="0" scrolling="no" target="main">

<iframe name="bbs_left" style="z-index: 2visibility: inheritwidth: 180pxheight: 100%"

src="left.htm" frameborder="0" scrolling="no" target="main"></iframe>

</div>

<div style="background-color: #005fbdwidth: 10pxfloat: leftheight: 800pxcursor: hand

padding: 300px 0px 0px 0px" id="menuSwitch" onclick="switchSysBarl()">

<img src="img/menu_close.gif" name="makeleft" width="10" height="10" border="0" id="makeleft" /></div>

<div style="float: leftwidth: auto">

<iframe name="bbs_main" style="z-index: 1visibility: inheritwidth: 100%height: 100%" src="right.htm"

frameborder="0" scrolling="yes"></iframe>

</div>

</body>

</html>

要让id=menu的div紧贴id=wrap的div，#wrap的padding-left应为0px，其实才是#menu的margin-left（你的已设定）与padding-left为0px

要让每个li向左浮动的话应当让其block化 CSS文件修改如下

#wrap {

margin:auto

width:800px

padding-left:0px

}

#menu ul {

display:block

font-size: 14px

list-style: none

padding:0px

}

#menu {

background: url(menu-d.png) repeat-x top left

height: 36px

overflow: visible

padding-left: 0px

margin:0px

}

#menu li {

float: left

position: relative

z-index: 5

}