title: svg image tag size
body: <pre><code>&lt;!DOCTYPE html&gt;
  
  &lt;html xmlns="http://www.w3.org/1999/xhtml"&gt;
      &lt;body&gt;
         &lt;svg 
          xmlns="http://www.w3.org/2000/svg" 
          xmlns:xlink="http://www.w3.org/1999/xlink" 
          id="test1" 
          height="1000px" 
          width="1000px"&gt;
              &lt;image id="testimg1" xlink:href="http://localhost/at/src/html5test/map1.png" width="87" height="66" x="0" y="0"/&gt;
  
          &lt;/svg&gt;
          &lt;/p&gt;        
      &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p></p>
  
  <p>within the image tag, is it a must to state the  width="87" height="66"? i want to let the image to display its original size(e.g the original size is  width="180" height="120"), is it to possible to do that ?</p>
  
  <p>in this case, if i remove width="87" height="66", the whole svg will display nothing.</p>
  
  <pre><code>&lt;svg 
      xmlns="http://www.w3.org/2000/svg" 
      xmlns:xlink="http://www.w3.org/1999/xlink" 
      id="test1" 
      height="1000px" 
      width="1000px"&gt;
          &lt;image id="testimg1" xlink:href="http://localhost/at/src/html5test/1.svg" x="0" y="0"  /&gt;
          &lt;image id="testimg2" xlink:href="http://localhost/at/src/html5test/2.svg" x="19" y="127" /&gt;
          &lt;image id="testimg3" xlink:href="http://localhost/at/src/html5test/3.svg" x="130" y="110"  /&gt;            
  
      &lt;/svg&gt;
  </code></pre>
  
  <p>thanks</p>