js的client详解

clientWidth：可视区宽说明：样式宽+padding

clientHeight：可视区高说明：样式高+padding

elem.clientWidth //获取元素的样式宽+padding

document.documentElement.clientWidth //获取文档的样式宽+padding

例子说明：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
        #d1{width:100px;height:100px;background:red;padding:50px;margin:50px;border:10px solid black;}
    </style>
</head>
<body>
    <div id="d1"></div>
    <script>
        var dom = document.getElementById('d1');
        console.log(dom.clientWidth + ',' + dom.clientHeight);
        console.log(document.documentElement.clientWidth + ',' + document.documentElement.clientHeight);
    </script>
</body>
</html>

ie7/ie9: