Add:
table
{
border-collapse: collapse;
}
Otherwise tr creates no single block.
Simple example:
table
{
border: 5px solid #900;
background: #fff;
}
tr
{
border: 5px solid #090;
}
td
{
background: #ccc;
padding: 5px 0;
}
table + table
{
border-collapse: collapse;
}<table>
<tr>
<td>def</td>
<td>ault</td>
</tr>
</table>
<table>
<tr>
<td>coll</td>
<td>apse</td>
</tr>
</table>