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- <!DOCTYPE HTML>
- <style>
- body { width: 450px }
- body, select { font-size: 34px }
- </style>
- <!--
- In a 450px container, the minimum font size at 15em per line is 30px.
- This means we map 0px-45px into 30px-45px, so 12px gets mapped to 34px.
- -->
- <select>
- <optgroup label="Counties">
- <option>Arlington
- <option>Fairfax
- <option>Loudon
- <option>Prince William
- <optgroup label="Cities">
- <option>Alexandria
- <option>Falls Church
- <option>Manassas
- <option>Manassas Park
- </select>
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