Percent-Layout/Vertical centering.html at master · DiggingSteve/Percent-Layout · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        html,
        body {
            margin: 0;
            padding: 0;
            height: 100%;
            background-color: #000;
        }

        div,
        span,
        p {
            -moz-box-sizing: border-box;
            /*Firefox3.5+*/
            -webkit-box-sizing: border-box;
            /*Safari3.2+*/
            -o-box-sizing: border-box;
            /*Opera9.6*/
            -ms-box-sizing: border-box;
            /*IE8*/
            box-sizing: border-box;
        }

        .line .block {
            width: 300px;
            height: 300px;
            position: relative;
            background-color: transparent;
            margin: .5% 1%;

            float: left;
            border: 1px solid #fff;
        }

        .flex {
            display: flex;
            justify-content: center;
            align-items: Center;
        }

        .minus_margin {
            position: absolute;
            width: 100px !important;
            height: 100px !important;
            top: 50%;
            left: 50%;
            margin-left: -50px;
            /*需要固定高度宽度*/
            margin-top: -50px;
            text-align: center;
        }

        .zero {
            position: absolute;
            margin: auto;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
        }

        .translate {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }

        .content {

            height: 50%;
            width: 50%;
            background-color: #fff;
        }

        .inline_block {
            text-align: center;
            font-size: 0;
        }

        .inline_block:after {
            content: '';
            width: 0;
            height: 100%;
            display: inline-block;
            vertical-align: middle;
        }

        .vertical_middle {
            vertical-align: middle;
            display: inline-block;
        }

        .clearfix:after {
            content: " ";
            display: block;
            clear: both;
            height: 0;
        }

        .clearfix {
            zoom: 1;
        }
    </style>
</head>

<body>

    <div class="line clearfix">
        <div class="block flex">
            <div class="content"></div>
        </div>
        <div class="block ">
            <div class="content minus_margin"></div>
        </div>
        <div class="block">
            <div class="content zero"></div>
        </div>
        <div class="block">
            <div class="content translate"></div>
        </div>
    </div>
    <div class="line clearfix">
        <div class="block inline_block">
            <div class="content vertical_middle"></div>
        </div>

    </div>
</body>

</html>