菜鸟学习路，遇到了问题请大神帮忙_html/css

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菜鸟学习路，遇到了问题请大神帮忙_html/css_WEB-ITnose

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Jun 21, 2016 am 09:21 AM

我就想做出来这种效果，用了opacity:0.5;还是不管用啊

回复讨论(解决方案)

贴下你的代码

nbsp;html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

index

首页

关于美联

选车中心

美联新车

活动咨询

买卖流程

金牌服务

美联速拍

.background{ width:100%;height:60px; background-color:#000;opacity:0.5; margin-top: -60px;}
这里加一个margin-top:-60px;

background为什么要加margin-top：-60px；他的位置正好和index-nav一平的哦

<!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" /><meta http-equiv="x-ua-compatible" content="ie=7" /><meta content="width=device-width,initial-scale=1,minimum-scale=1.0, maximum-scale=1,user-scalable=yes" name="viewport"><link href="../css/index.css" type="text/css" rel="stylesheet" /><style type="text/css">.index-all{ width:100%; font-family:微软雅黑; height:1000px;}.logo{width:100%;}.background{ width:100%;height:60px; background-color:#000;opacity:0.5;}.logo img{ width:100%;}.index-nav{ width:100%; margin:auto; height:60px; position:absolute; margin-top:-60px;}.index-nav ul{ list-style-type:none;  margin:auto;width:60%; line-height:50px;}.index-nav ul li{ float:left; padding-left:3.3%; padding-right:3.3%; color:#FFF;}</style><title>index</title></head><body><div class="index-all"><div class="logo">    	<img  src="/static/imghwm/default1.png"  data-src="../image/logo1.png"  class="lazy"  / alt="菜鸟学习路，遇到了问题请大神帮忙_html/css_WEB-ITnose" ></div>     <div class="background"></div>    <div class="index-nav">    	<ul>        	<li>首页</li>            <li>关于美联</li>            <li>选车中心</li>            <li>美联新车</li>            <li>活动咨询</li>            <li>买卖流程</li>            <li>金牌服务</li>            <li>美联速拍</li>        </ul>           </div></div></body></html>

透明度调高点

style中的index-all是什么意思？

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