title: How do you change a table border opacity
body: <p>I have a webpage with a gradient background image.  On this page is a table.  I have set the borders to a 5px width and solid.  I would like to make these borders opacity to 0% so users see the gradient background instead.  Is this possible.  This is the table I have so far.</p>
  
  <pre><code>&lt;div style="margin: 0pt auto; width: 980px;background-color:white;"&gt;
  &lt;div style="500px;overflow:hidden"&gt;
      &lt;table style="width: 100%; table-layout: fixed;"&gt;
      &lt;tbody&gt;
        &lt;tr&gt;
          &lt;th style="border-bottom:5px solid rgba(255,0,0,.5);"&gt;&lt;font color="red"&gt;Name&lt;/font&gt;&lt;/th&gt;
          &lt;th style="border-bottom:5px solid rgba(255,0,0,.5);"&gt;&lt;font color="green"&gt;Event&lt;/font&gt;        &lt;/th&gt;
          &lt;th style="border-bottom:5px solid rgba(255,0,0,.5);"&gt;&lt;font color="blue"&gt;Description&lt;/font&gt;&lt;/th&gt;
       &lt;/tr&gt;
       &lt;tr&gt;
          &lt;td style="width:150px;border-right:1px solid black;border-bottom:1px solid red;"&gt;&lt;?         echo $Row['name']; ?&gt;&lt;/td&gt;
          &lt;td style="width:150px;border-right:1px solid black;border-bottom:1px solid green;"&gt;&lt;? echo $Row['description']; ?&gt;&lt;/td&gt;
          &lt;td style="width:150px;border-bottom:1px solid blue;"&gt;&lt;? echo $Row['detail']; ?&gt;&lt;/td&gt;
       &lt;/tr&gt;
     &lt;/tbody&gt;
     &lt;/table&gt;
  &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>I changed the color to rgba(255,0,0,.05) as previously suggested but it shows the white background set for the division outside the table.  I want to show the true page background for the borders of the table which is a multicolored gradient.</p>
  
  <p>This has been tagged as a duplicate but I was not told where the original question is.  Using the rgb or rgba only changes the opacity to the background of the table cells.  I want to show the page background which is behind the table which is a colored gradient.  If this is a duplicated question please show me where the answer has been given.  Thank you.</p>