css笔记07-白红宇

css笔记07

阅读量：6713 次

发布时间：2019-06-25

本文共 1524 字，大约阅读时间需要 5 分钟。

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                 *{                padding:0px;                margin:0px;                font-size:12px;            }            body{                /* padding:50px; */            }            #header,#bottom{                height:70px;                background:#811;                color:#fff;            }            #nav{                height:30px;                background:#981;                color:#fff;            }            #content{                height:600px;                background:#eee;                color:#fff;            }            #c_header,#c_nav,#c_content,#c_bottom{                position:absolute;                width:1000px;                left:50%;                margin-left:-500px;                border:1px solid #44f;            }            #gzwm{                height:40px;                /*透明效果,第一个IE,第二个firefox,第三个CSS标准 */                filter:alpha(opacity-80);                -moz-opacity:0.8;                opacity:0.8;                background:#000;                /*第三种position*/                position:fixed;                bottom:0px;                width:100%;                color:#fee;                /*fixed建议设置如下选项 */                z-index:999;            }                        
     
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