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<title>Large Text Comparison (LTC) bookmarklet</title>
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<h2 class="reg">Large Text Comparison (LTC) bookmarklet </h2>
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<p class="reg"> Description </p>
<p > WCAG SC 1.4.3 allows a minimum contrast ratio of 3:1 for “large-scale text”, defined by WCAG as “<span class="thick">18 point or </span> <span class="thick">14 point bold.</span>” Unlike html text, where the font size can be programmatically determined, the size of images of text must be ascertained by other means, such as visual comparison.
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This bookmarklet creates a box with samples of large-scale text with height comparison (sizing) lines above and below the sample text. The box can be moved onscreen to images of text, to determine if they qualify as large-scale text.

<p class="reg"> Instructions </p>
<ol >
  <li >At the prompt, enter an integer to specify the transparency level (1 = opaque). Pressing OK without entering a value uses the default setting of 2.</li>
  <li >Drag the box beside or in front of the image of text.</li>
  <ol type="a">
  <li>Mouse: drag </li>
  <li>Keyboard: arrow keys </li>
  </ol>
  <li >Using the regular or bold sample as appropriate, use the sizing lines to see if the image of text is at least the sample size.</li>
  <li >Use Esc to close the box.</li>
</ol>  
</p>
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  <script src="./JS/LTCKeyboardMouse.js"> </script>   
  
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