<!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=utf-8" /><title>无标题文档</title><style type="text/css">#box_relative { position: absolute; left: 30px top: 192px; width: 800px; height: 100px; background-color: #00F; left: 95px; top: 253px;}#box01 { position: absolute; left: 72px; top: 50px; width: 300px; height: 20px; background-color: #000; z-index: 1;}#box02 { position:relative; top: 103px; width: 300px; height: 20px; background-color:#0F0; margin-left:100px;}#box03 { position:relative; top: 103px; width: 300px; height: 20px; background-color:#600; margin-left:auto; margin-right:auto;}#box06 { position:relative; width: 800px; height: 100px; background-color: #F39; top: 619px; margin-left:auto; margin-right:auto; z-index: -1;}#box07 { position:relative; width: 300px; height: 30px; background-color:#0F0; left:30px;}#box08 { position: absolute; top: 46px; width: 300px; height: 30px; background-color: #0F0; margin-left: auto; margin-right: auto; left: 30px;}</style></head><body><div id="box03"> 1111 </div><div id="box_relative"> <div id="box01"> 1111 </div> <div id="box02"> 1111 </div> </div><div id="box06"> <div id="box07"> 1111 </div> <div id="box08"> 1111 </div> </div></body></html><div id="box06"> <div id="box07"> 1111 </div> <div id="box08"> 1111 </div> </div>
#box07 { position:relative; width: 300px; height: 30px; background-color:#0F0; left:30px;}#box08 { position: absolute; top: 46px; width: 300px; height: 30px; background-color: #0F0; margin-left: auto; margin-right: auto; left: 30px;}
1、box07使用相对定位，box08使用绝对定位，为什么效果是一样的？
都相距box06左边30px
都在div的id都在box06内，怎么才能在页面扩大或者缩小是不一样？
2、请问如果想让box06在页面扩大或者缩小都居中，box07 也居中
box08一直距离页面左边30px 怎么做
并且box07与box08都在box06中，怎么做？
<style type="text/css">#box06 { position:relative; width: 500px; height: 100px; top:50%; left:50%; margin-left:-250px; margin-top:-50px; background-color:#F39;} #box07 { position:absolute; width: 300px; height: 30px; background-color:#0F0; left:50%; top:50%; margin-left:-150px; margin-top:-15px;} #box08 { position:absolute; width: 300px; height: 30px; background-color:#0Ff; left:30px; top:50%;}</style><div id="box06"> <div id="box07">box07</div> <div id="box08">box08</div></div>
我表示有点头晕,,,,
父级用position:relative;
子级用position:absolute;
HTML怎么学习？HTML怎么入门？HTML在哪学？HTML怎么学才快？不用担心，这里为大家提供了HTML速学教程(入门课程)，有需要的小伙伴保存下载就能学习啦！
Copyright 2014-2025 https://www.php.cn/ All Rights Reserved | php.cn | 湘ICP备2023035733号
604
收藏
