纯粹使用使用height:100%;或者height:auto;来定义内部容器自适应高度,都无法实现让内部容器高度随着外部父容器高度变化而变化,所以我们必需要使用position绝对定位属性来配合协助实现。
//.box{ 960px; margin:20px auto; height:auto; background-color:#FFFFFF; position:relative;} //.left{ 160px; height:100%; background-color:#fafafa; position:absolute; top:0px; left:0px;} //.right{ 800px; height:auto; float:right;} <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>MJBlog(mj.588cy.com)</title> <style type="text/css"> * {margin:0;padding:0;font-size:12px;list-style:none;border:0;} body{font-family: Arial, Helvetica, sans-serif; background-color:#edf0eb;} a{ text-decoration:none;} a:hover{ text-decoration:underline;} .clear{ display:block; height:0px; line-height:0px; font-size:0px; clear:both;} .box{ 960px; margin:20px auto; height:auto; background-color:#FFFFFF; position:relative;} .left{ 160px; height:100%; background-color:#fafafa; position:absolute; top:0px; left:0px;} .left_wu{ 160px; height:100%; background-color:#fafafa; float:left;} .left h1,.left_wu h1{ 160px; height:30px; background-color:#67a727; text-align:center; line-height:30px; color:#FFFFFF; font-size:14px; margin-top:30px;} .nav{ 160px; height:auto; margin:12px 0px;} .nav a{ 160px; height:30px; line-height:30px; text-align:center; display:block; color:#588c0e;} .nav a:hover{ background-color:#ebebeb;} .nav .a_dq{ color:#333333; background-color:#ebebeb; font-weight:bold;} .right{ 800px; height:auto; float:right;} .right h1{ 800px; height:500px; text-align:center; line-height:100px; font-size:14px; font-weight:100;} </style> </head> <body> <div class="box"> <div class="right"> <h1>这个是有使用position绝对定位属性,所以左边的导航栏高度会随着父容器高度而变化</h1> </div> <div class="clear"></div> <div class="left"> <h1>个人资料</h1> <div class="nav"> <a href="#" class="a_dq">基本信息</a> <a href="#">修改头像</a> <a href="#">帐号绑定</a> <a href="#">个性签名</a> </div> </div> </div> <div class="box"> <div class="left_wu"> <h1>个人资料</h1> <div class="nav"> <a href="#" class="a_dq">基本信息</a> <a href="#">修改头像</a> <a href="#">帐号绑定</a> <a href="#">个性签名</a> </div> </div> <div class="right"> <h1>这个是没有使用position绝对定位属性,所以左边的导航栏高度没有随着父容器高度而变化,视觉效果就会差点</h1> </div> <div class="clear"></div> </div> </body> </html>
关于div自适应高度/左右高度自适应一致的js代码
$(function(){ var heightLeft= $("#Left").height(); var heightRight= $("#Right").height(); if (heightLeft > heightRight) { $("#Right").height(heightLeft); } else { $("#Left").height(heightRight); } })