Oh yes, yes it is!
CSS:
table {
border-collapse: collapse;
}
td {
position: relative;
padding: 5px 10px;
}
tr.strikeout td:before {
content: " ";
position: absolute;
top: 50%;
left: 0;
border-bottom: 1px solid #111;
width: 100%;
}
HTML:
<table>
<tr>
<td>Stuff</td>
<td>Stuff</td>
<td>Stuff</td>
</tr>
<tr class="strikeout">
<td>Stuff</td>
<td>Stuff</td>
<td>Stuff</td>
</tr>
<tr>
<td>Stuff</td>
<td>Stuff</td>
<td>Stuff</td>
</tr>
</table>