CSS - 定位小例子

作者: Hyso | 来源:发表于2019-04-08 18:07 被阅读0次

CSS - 定位小例子
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例1

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        .box {
            width: 700px;
            height: 120px;
            position: relative;
            margin: 100px auto;
            border: 1px solid #000000
        }
        
        .title {
            height: 30px;
            position: absolute;
            top: -15px;
            left: 10px;
            font-size: 14px;
            line-height: 30px;
            padding: 0 10px;
            background-color: #FFFFFF;
        }

        .content {
            width: 680px;
            margin: 20px 10px;
            background-color: pink;
        }

        .content img {
            width: 80px;
            height: 80px;
            float: left;
        }

        .text {
            margin-left: 95px;
            font-size: 12px;
        }

        .text p {
            margin-top: 5px;
        }

        .clearfix:after {
            content: "";
            display: block;
            clear: both;
        }

        .clearfix {
            zoom: 1;
        }
    </style>
</style>
</style>
</head>
<body>
    <div class="box">
        <h3 class="title">关于我们</h3>
        <div class="content">
            <img src="photo.jpg" alt="">
            <div class="text clearfix">
                <p>123</p>
                <p>123</p>
                <p>123</p>
                <p>123</p>
            </div>
        </div>
    </div>
</body>
</html>

例2

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        li {
            list-style: none;
        }

        a {
            text-decoration: none;
        }

        .list {
            width: 450px;
            height: 35px;
            margin: 100px auto;
            font-size: 16px;
            text-align: center;
            font-family: "Microsoft YaHei", "微软雅黑";
            border-top: 1px solid #4B91F3;
            border-right: 1px solid #4B91F3;
            border-bottom: 4px solid #4B91F3;
        }

        .list li {
            float: left;
            border-left: 1px solid #4B91F3;
        }

        .list li a {
            width: 74px;
            height: 35px;
            position: relative;
            color: #4B91F3;
            line-height: 35px;
            display: inline-block;
        }

        .list li a:hover {
            color: #FFFFFF;
            background-color: #4B91F3;
        }

        /* 三角形 */
        .list li a i {
            width: 0;
            height: 0;
            position: absolute;
            left: 50%;
            bottom: 0;
            /* border-width:5px，即三角形的宽高各位10px*/
            margin-left: -5px;
            border-width: 5px;
            border-style: solid;
            border-color: transparent transparent #4B91F3 transparent;
            display: none;
        }

        .list .active a i {
            display: block;
        }
    </style>
</style>
</style>
</head>
<body>
    <ul class="list">
        <li class="active"><a href="#">首页<i></i></a></li>
        <li><a href="#">视频<i></i></a></li>
        <li><a href="#">前瞻<i></i></a></li>
        <li><a href="#">攻略<i></i></a></li>
        <li><a href="#">评测<i></i></a></li>
        <li><a href="#">网游<i></i></a></li>
    </ul>
</body>
</html>

例3

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        .box {
            width: 80px;
            margin: 100px auto;
            position: relative;
            border: 1px solid #000000;
        }
        
        .box img {
            height: 80px;
            /* 去除图片下边距 */
            vertical-align: top;
        }

        .tag {
            width: 40px;
            height: 20px;
            position: absolute;
            top: 0;
            right: -8px;
            color: #FFFFFF;
            text-align: center;
            line-height: 20px;
            background-color: #EE3030;
        }
        
        /* 标签下的三角阴影 */
        .tag i {
            width: 0;
            height: 0;
            position: absolute;
            top: 100%;
            right: -8px;
            border-width: 0 8px 8px;
            border-style: solid;
            border-color: transparent transparent transparent #7E1818;
        }

    </style>
</style>
</style>
</head>
<body>
    <div class="box">
        <img src="photo.jpg" alt="" />
        <span class="tag">标签<i></i></span>
    </div>
</body>
</html>