0063 2D conversion scale transform it

scale Role of
- Control zoom in and out element
grammar
```
transform: scale(x, y)
```
Knowledge Points
- Separated by commas between the noted, x and y
- transform: scale(1, 1): Twice as wide and high amplification, equivalent to no amplification
- transform: scale(2, 2): Enlarged width and height twice
- transform: scale(2): If you only wrote one argument, the second argument to the first argument and consistent
- transform:scale(0.5, 0.5): Narrow
- scaleThe biggest advantage: You can set the conversion center point of the zoom, zoom center point by default, but does not affect other box

Code demonstrates

   div:hover {
    /* 注意，数字是倍数的含义，所以不需要加单位 */
    /* transform: scale(2, 2) */

    /* 实现等比缩放，同时修改宽与高 */
    /* transform: scale(2) */

    /* 小于 1 就等于缩放*/
    transform: scale(0.5, 0.5)
   }

<!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>
        div {
            width: 200px;
            height: 200px;
            background-color: pink;
            margin: 100px auto;
            /* transform-origin: left bottom; */
        }
        
        div:hover {
            /* 1. 里面写的数字不跟单位 就是倍数的意思 1 就是1倍  2就是 2倍 */
            /* transform: scale(x, y); */
            /* transform: scale(2, 2); */
            /* 2. 修改了宽度为原来的2倍  高度 不变 */
            /* transform: scale(2, 1); */
            /* 3. 等比例缩放 同时修改宽度和高度，我们有简单的写法  以下是 宽度修改了2倍，高度默认和第一个参数一样*/
            /* transform: scale(2); */
            /* 4. 我们可以进行缩小  小于1 就是缩放 */
            /* transform: scale(0.5, 0.5); */
            /* transform: scale(0.5); */
            /* 5. scale 的优势之处： 不会影响其他的盒子 而且可以设置缩放的中心点*/
            /* width: 300px;
            height: 300px; */
            transform: scale(2);
        }
    </style>
</head>

<body>
    <div></div>
    123123
</body>

</html>

Case larger image

<!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>
        div {
            overflow: hidden;
            float: left;
            margin: 10px;
        }
        
        div img {
            transition: all .4s;
        }
        
        div img:hover {
            transform: scale(1.1);
        }
    </style>
</head>

<body>
    <div>
        <a href="#"><img src="media/scale.jpg" alt=""></a>
    </div>
    <div>
        <a href="#"><img src="media/scale.jpg" alt=""></a>
    </div>
    <div>
        <a href="#"><img src="media/scale.jpg" alt=""></a>
    </div>
</body>

</html>

Here Insert Picture Description

Case paging buttons

<!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>
        li {
            float: left;
            width: 30px;
            height: 30px;
            border: 1px solid pink;
            margin: 10px;
            text-align: center;
            line-height: 30px;
            list-style: none;
            border-radius: 50%;
            cursor: pointer;
            transition: all .4s;
        }
        
        li:hover {
            transform: scale(1.2);
        }
    </style>
</head>

<body>
    <ul>
        <li>1</li>
        <li>2</li>
        <li>3</li>
        <li>4</li>
        <li>5</li>
        <li>6</li>
        <li>7</li>
    </ul>
</body>

</html>

Here Insert Picture Description

0063 2D conversion scale transform it

Case larger image

Case paging buttons

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