text: <!--
       Any copyright is dedicated to the Public Domain.
       http://creativecommons.org/publicdomain/zero/1.0/
  -->
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       xmlns:svg="http://www.w3.org/2000/svg"
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  <head>
  <style>
  .unit { display:inline-block; width:100px; height:1px; }
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    <span class="unit"/><span class="unit"
    /><span style="clip-path:url(#c1); background:lime;"><span class="unit"/><span class="unit"
    /></span>
  
    <svg:svg height="0">
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