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<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Document</title>
<style>
div {
width: 600px;
height: 200px;
/* 背景渐变必须添加浏览器私有前缀 */
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background: -webkit-linear-gradient(top left, red, blue);
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