css实现自适应下拉菜单效果

代码语言:html

所属分类:布局界面

下面为部分代码预览,完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title></title>
    <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <link type="text/css" rel="stylesheet" href="http://repo.bfw.wiki/bfwrepo/css/reset.min.css">
    <style type="text/css" media="all">
        .index-nav {
            width: 100%;
            border-bottom: 1px solid #eeeeee;
            height: 50px;
            box-sizing: border-box;
            background: white;
        }
        .index-nav-frame {
            width: 1200px;
            margin: 0 auto;
        }
        .index-nav-frame-line {
            color: #333333;
            background: white;
            float: left;
            position: relative;
            display: block;
            outline: none;
            cursor: pointer;
            width: 100px;
            line-height: 50px;
            text-align: center;
            font-weight: 700;
        }
        .index-nav-frame-line.active {
            color: #b63b4d;
        }

        .index-nav-frame-line-center {
            opacity: 0;
            height: 0;
            position: absolute;
            overflow: hidden;
            width: 100%;
            transition: all 0.5s;
            -webkit-transition: all 0.5s;
            -moz-transition: all 0.5s;
            /* Firefox 4 */-o-transition: all 0.5s;
            /* Opera */
        }
        .index-nav-frame-line-li {
            width: 100%;
            font-weight: 500;
            text-align.........完整代码请登录后点击上方下载按钮下载查看

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