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@@ -0,0 +1,31 @@
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+<!DOCTYPE html>
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+<html lang="en">
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+<head>
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+ <meta charset="UTF-8">
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
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+ <title>Document</title>
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+ <style>
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+ .box{
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+ width: 100px;
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+ height: 100px;
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+ background-color: red;
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+ /*transition 过度 第一个值监听哪个属性的变化 第二过度时间 第三过度方式*/
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+ /* transition: width 1s linear; */
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+ /* transition-property: width;
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+ transition-duration: 1s;
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+ transition-timing-function: linear; */
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+ /* all 表示监听所有属性的变化 */
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+ transition: all 1s linear;
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+
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+ }
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+ .box:hover{
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+ width: 400px;
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+ background-color: blue;
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+ height: 400px;
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+ }
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+ </style>
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+</head>
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+<body>
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+ <div class="box"></div>
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+</body>
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+</html>
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