2D转换

    /* x  y 轴 */
            /* transform: translate(100px, 100px); */
            /* transform: translate(100px, 0); */
            /* transform: translateX(100px); */
            /* transform: translateY(200px); */
 
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        div {
            position: relative;
             500px;
            height: 500px;
            background-color: pink;
            /* 可以使用 %,  50% 是自身一半 */
            /* transform: translateX(50%); */
        }
        /* 定位水平垂直居中 */
        
        p {
            position: absolute;
            top: 50%;
            left: 50%;
             200px;
            height: 200px;
            background-color: purple;
            /* margin-top: -100px;
            margin-right: -100px; */
            transform: translate(-50%, -50%);
        }
    </style>
</head>

<body>
    <div>
        <p></p>
    </div>
</body>

</html>
 
原文地址:https://www.cnblogs.com/ericblog1992/p/12933437.html