title: Nested sticky element with zero left does not sticky
body: <p>Why my nested sticky element with <code>left: 0</code> does not stick while the nested element with <code>top: 0</code> sticks normally?</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>.scroll {
    width: 200px;
    height: 200px;
    border: 1px solid;
    overflow: auto;
  }
  
  .container {
    width: 600px;
    height: 1000px;
  }
  
  .sticky-left {
    position: sticky;
    left: 0;
  }
  
  .sticky-top {
    position: sticky;
    top: 0;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div class="scroll"&gt;
    &lt;div class="sticky-top"&gt;sticky-top&lt;/div&gt;
    &lt;div class="sticky-left"&gt;sticky-left&lt;/div&gt;
    &lt;div class="container"&gt;
      &lt;div class="sticky-top"&gt;sticky-top-nested&lt;/div&gt;
      &lt;div class="sticky-left"&gt;sticky-left-nested&lt;/div&gt;
    &lt;/div&gt;
  &lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>