title: Is removing a link underline on hover not WCAG compliant?
body: <p>I'm trying to find a definitive answer to this accessibility question. If I set the underline on all links by default...</p>
  <pre><code>a {
      text-decoration: underline;
  }
  </code></pre>
  <p>...and remove the underline on hover...</p>
  <pre><code>a:hover {
      text-decoration: none;
  }
  </code></pre>
  <p>...is this no longer WCAG 2.0 compliant?</p>
  <p>There's a bit of gray area with the W3C's Success Criterion. Per &quot;<a href="https://www.w3.org/TR/2008/WD-WCAG20-TECHS-20081103/F73" rel="nofollow noreferrer">Failure of Success Criterion 1.4.1 due to creating links that are not visually evident without color vision</a>&quot;:</p>
  <blockquote>
  <p>Link underlines or some other non-color visual distinction are required (when the links are discernible to those with color vision).</p>
  </blockquote>
  <p>We know that a link with default styling that doesn't include an underline fails the success criterion even if the underline is applied on hover. Because as stated above, &quot;other non-color visual distinction are required&quot;. Is the same true in reverse?</p>
  <p>I've seen a few accessibility tools (e.g., SiteImprove) flag the lack of underline on hover even when it's present for default styling. Does anyone know definitively what the answer is?</p>