ame="assert" />

  <style type="text/css"><![CDATA[
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      font-size: 4em;
      margin-left: 2em;
      writing-mode: vertical-lr;
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  span#larger
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  <p>Test passes if there is <strong>one and only one vertical straight and unbroken line</strong>. Such line should have the same thickness over its entire leng