原生JS实现 MUI导航栏透明渐变效果
mui内置有H5版本的透明渐变导航控件,教程参考mui官网;透明渐变导航是一种解决滚动条通顶的变通方案,相比双webview,具有更高的性能和更好的动画效果;
下面通过本文给大家分享基于原生JS实现MUI导航栏透明渐变效果,具体内容详情如下所示:
首先声明:由于backgroundColor的值采用的是RGBA,IE8及以下不支持,所以此效果不支持IE8及以下的浏览器
css代码
body,p,h1{margin:0;} .module-layer{ width:100%; position:fixed; top:0; left:0; z-index:100000; } .module-layer-content{ position:relative; min-width:320px; max-width:750px; width:100%; margin:0auto; background-color:rgba(255,0,0,0.9); } .module-layer-bg{ width:100%; height:100%; background:#000; opacity:.7; position:absolute; top:0; left:0; z-index:-1; } .layer-head-name{ height:50px; line-height:50px; text-align:center; padding:050px; font-size:20px; } .layer-return,.layer-share{ width:50px; height:50px; line-height:50px; text-align:center; position:absolute; top:0; z-index:1; } .layer-return{left:0;} .layer-share{right:0;} .fixed-layer{ height:100%; display:none; z-index:100001; } .relative-layer{height:100%;} .layer-content{ padding:3%; position:relative; top:20%; } .layer-close{ width:2rem; height:2rem; position:absolute; top:3%; right:3%; } .pr{ position:relative; } #shop-input::-webkit-input-placeholder{ color:#fff; } #shop-input:-moz-placeholder{ color:#fff; } #shop-input::-moz-placeholder{ color:#fff; } #shop-input:-ms-input-placeholder{ color:#fff; } #shop-input{ border:none; outline:none; background:transparent; } .search-box{ height:30px; border-radius:20px; top:10px; overflow:hidden; z-index:10; } .search-box:after{ content:''; display:block; width:100%; height:30px; background:#fff; opacity:.5; position:absolute; top:0; left:0px; z-index:-1; } #shop-input{ height:28px; line-height:28px; font-size:16px; position:absolute; top:0; left:30px; } .shop-search{ width:16px; height:16px; position:absolute; top:7px; left:6px; } .layer-return{ background:url(images/return.png)no-repeatcentercenter/12px20px; } .layer-share{ background:url(images/share.png)no-repeatcentercenter/20px30px; } a{ -webkit-tap-highlight-color:transparent; -webkit-touch-callout:none; -webkit-user-select:none; } .module-content{ min-width:320px; max-width:750px; width:100%; margin:0auto; background:#fff; } .module-contentdiv:first-childimg{margin-top:0;} .module-contentdivimg{ display:block; width:100%; margin-top:10px; }
HTML代码