title: pisa html2pdf convert table dont apply height to td
body: <p>I use <strong>pisa xhtml2pdf</strong> to convert an html code to pdf.</p>
  
  <p>I have a problem! pisa did not apply some style to my table such as <strong>height</strong> and <strong>vertical-align</strong></p>
  
  <pre><code>&lt;table style='overflow: hidden;' border='1' cellpadding='0' cellspacing='0' 
  width="300px"&gt;
  &lt;tr style="background-color : yellow; height:100px;"&gt;
  &lt;td style="color: red; height:100px; vertical-align: middle;"&gt;
  A lot of  data
  &lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;
  </code></pre>
  
  <p>but after converting this html to pdf, height of table tds and vertical-align did not correct!
  Please help me.</p>