案例：SVG案例     状态：可编辑再运行    进入横版
​x
    <g font-family="Verdana" font-size="50" stroke="red" stroke-width="4">
 
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<!DOCTYPE html>
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<html>
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<body>
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​
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<svg xmlns="http://www.w3.org/2000/svg" version="1.1">
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  <defs>
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    <filter id="Erode1">
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      <feMorphology operator="erode" in="SourceGraphic" radius="1" />
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    </filter>
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    <filter id="Erode3">
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      <feMorphology operator="erode" in="SourceGraphic" radius="3" />
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    </filter>
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    <filter id="Erode4">
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      <feMorphology operator="erode" in="SourceGraphic" radius="4" />
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    </filter>
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    <filter id="Dilate1">
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      <feMorphology operator="dilate" in="SourceGraphic" radius="1" />
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    </filter>
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    <filter id="Dilate3">
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      <feMorphology operator="dilate" in="SourceGraphic" radius="3" />
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    </filter>
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    <filter id="Dilate4">
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      <feMorphology operator="dilate" in="SourceGraphic" radius="4" />
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    </filter>

 运行结果　
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