根据浏览器自适应div高度，我将高度设置成百分比后，依然无效

<!DOCTYPE html><html lang="en"><head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        #dd {            width: 100%;            height: 100%;
        }        #dd1 {            width: 20%;            height: 20%;            background-color: #F17A7A;
        }    </style></head><body><div id="dd">
    <div id='dd1'>
        111
        222
        2222    </div></div></body></html>

叮当猫咪

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2回答

LEATH

html,body{height: 100%;width: 100%;}