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<html>
<head>
<style>
img {
filter: contrast(200%) brightness(150%); /* Chrome, Safari, Opera */
filter: contrast(200%) brightness(150%);
}
</style>
</head>
<body>
<p>组合任意数量的函数来控制渲染:</p>
<img src="https://7n.w3cschool.cn/statics/images/course/tryitimg.gif" alt="Pineapple" width="300" height="300">
<p><strong>注意:</strong> Internet Explorer 不支持 filter 属性。</p>
</body>
</html>