实例代码“Ctrl+/”提示“F11/ESC”全屏 返回 格式化 恢复 运行
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>手册网(www.shouce.ren)</title>
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<style>
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#myDIV {
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    background-color: lightblue;
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    overflow: auto;
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    border: 1px solid black;
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    -webkit-animation: mymove 5s infinite; /* Chrome, Safari, Opera */
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    animation: mymove 5s infinite;
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}
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​
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/* Chrome, Safari, Opera */
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@-webkit-keyframes mymove {
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    50% {max-width: 600px;}
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}
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​
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/* Standard syntax */
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@keyframes mymove {
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    50% {max-width: 600px;}
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}
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</style>
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</head>
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<body>
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​
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<p>逐步改变 max-width, 从 "none" 到 "600px":<p>
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​
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<div id="myDIV">
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  <p>This DIV element does not have a pre-defined width.</p>
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  <p>Try resizing the browser window to see that width of this DIV element will grow/shrink along width the resizing, but it will never exceed 600 pixels in width.</p>
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</div>
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​
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<p>max-width 属性支持动画效果。</p>
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<p><b>注意:</b> 目前 max-height 属性在 Chrome 浏览器下不会改变 <em>gradually（灰阶）</em>, 在 Firefox 都无法起作用。</p>
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<p><b>注意：</b>Internet Explorer 9 及更早 IE 版本不支持 CSS 动画。</p>
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​
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</body>
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</html>