<!DOCTYPE HTML>
<style>
  body { line-height: 1.0; width: 450px; font-size: 34px; }
  select { vertical-align: top; font-size: 12px; width: 100px; }
</style>
<!--
Because the combobox has constrained width, font inflation
should be disabled.
-->
<select><option>One</Option><option>Two</option></select>