so why isn't outlook desktop rendering these highlighted columns? Not too familiar with HTML/CSS so a little lost. This shows in my web browser with highlighted columns. My understanding is colgroup is supported by the rendering engine so i'm not sure what im missing. thanks
<table>
<colgroup>
<col style="background-color:#FFFF00">
<col>
<col>
<col>
<col>
<col style="background-color:#FFFF00">
<col style="background-color:#FFFF00">
<col>
<col>
<col style="background-color:#FFFF00">
<col style="background-color:#FFFF00">
<col>
</colgroup>
<thead>
<tr>
<th>Pro Number</th>
<th>Date</th>
<th>Est Delivery Date</th>
<th>Origin</th>
<th>Destination</th>
<th>Terms</th>
<th>Total A/R</th>
<th>Responsible Account</th>
<th>Responsible Customer</th>
<th>Responsible Name</th>
<th>Responsible Risk Code</th>
<th>Responsible Analyst</th>
</tr>
</thead>
<tbody>
<tr>
<td>123456789</td>
<td>2021-11-24</td>
<td>2021-11-29</td>
<td>LOU</td>
<td>CIN</td>
<td>Collect</td>
<td>1000</td>
<td>1</td>
<td>1</td>
<td>Sample Customer</td>
<td>CASH ONLY - NO BUSINESS ALLOWED</td>
<td>Sample Analyst</td>
</tr>
</tbody>
</table>
edit: i tried without col and colgroup and this works. just need to be able to do this with a dynamically changing table for every row.
<table>
<thead>
<tr>
<th>Pro Number</th>
<th>Date</th>
<th>Est Delivery Date</th>
<th>Origin</th>
<th>Destination</th>
<th>Terms</th>
<th>Total A/R</th>
<th>Responsible Account</th>
<th>Responsible Customer</th>
<th>Responsible Name</th>
<th>Responsible Risk Code</th>
<th>Responsible Analyst</th>
</tr>
</thead>
<tbody>
<tr>
<td bgcolor="#FFFF00">123456789</td>
<td>2021-11-24</td>
<td>2021-11-29</td>
<td>LOU</td>
<td>CIN</td>
<td bgcolor="#FFFF00">Collect</td>
<td bgcolor="#FFFF00">1000</td>
<td>1</td>
<td>1</td>
<td bgcolor="#FFFF00">Sample Customer</td>
<td bgcolor="#FFFF00">CASH ONLY - NO BUSINESS ALLOWED</td>
<td>Sample Analyst</td>
</tr>
</tbody>
</table>