实例代码“Ctrl+/”提示“F11/ESC”全屏 返回 格式化 恢复 运行
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<style>
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    .circle {
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        width: 200px;
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        height: 200px;
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        position: absolute;
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        border-radius: 50%;
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        background: #0cc;
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    }
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    .left,.right{
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        width:200px;
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        height:200px;
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        position: absolute;
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        top: 0px;
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        left: 0px;
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    }
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    .pie_left, .pie_right{
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        width:200px;
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        height:200px;
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        position: absolute;
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        border-radius: 50%;
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        top: 0px;
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        left: 0px;