jQuery/07_CSS操作2_heightwidth.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./js/jquery-3.6.0.min.js"></script>
    <style>

        .box1{
            width: 100px;
            height: 100px;
            background-color: red;
        }

        .box2{
            background-color: green;
        }

    </style>
</head>
<body>


    <div class="box1"></div>
    <div class="box2"></div>

    <script>   
        // 获取box1宽度和高度
        var width = $(".box1").width();
        var height = $(".box1").height();
        console.log(width,height);

        // 设置box2的宽度和高度  链式调用
        $(".box2").width(200).height(200);

    </script>
    
</body>
</html>