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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Specifying a longhand property should not serialize to a shorthand property"
   href="https://bugs.webkit.org/show_bug.cgi?id=157180">157180</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Specifying a longhand property should not serialize to a shorthand property
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>WebKit Nightly Build
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>CSS
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>graouts&#64;webkit.org
          </td>
        </tr></table>
      <p>
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        <pre>The CSS spec defines what should happen when serializing a CSS declaration block at <a href="http://www.w3.org/TR/cssom-1/#serialize-a-css-declaration-block">http://www.w3.org/TR/cssom-1/#serialize-a-css-declaration-block</a>. In there, the spec says that we should only serialize to a shorthand property if all required longhand properties are specified. So an element with a &quot;style&quot; attribute set to &quot;background-color: green&quot; should not return &quot;green&quot; when querying element.style.background, but &quot;&quot;.</pre>
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