title: Browser handling of CSS “transparent” in gradients
body: <p>Although the CSS colors <code>rgba(255,255,255,0)</code> and <code>rgba(0,0,0,0)</code> are apparently the same, i.e. <code>transparent</code>, when being looked at as plain colors, they affect the intermediate colors in gradients:</p>
  
  <pre><code>linear-gradient(left center, rgba(0,0,0,0), rgba(255,255,255,1))
  </code></pre>
  
  <p>This yields grey semitransparent tones between the two ends.</p>
  
  <p>Now my questions:</p>
  
  <ol>
  <li><p>Do browsers select the “right” color for <code>transparent</code> automatically or is it a fixed color (most likely “black transparent” or “white transparent”)?</p></li>
  <li><p>Is this different between browsers?</p></li>
  </ol>