<!DOCTYPE html>
<head>
<style>
html {
line-height: 1.25;
}
body {
background-color: white;
margin: 0;
}
table {
background-color: red;
border-collapse: collapse;
position: absolute;
top: 525px;
}
thead {
background-color: pink;
}
tbody {
background-color: grey;
}
tfoot {
background-color: orange;
}
tr {
background-color: green;
}
td:first-child {
background-color: cyan;
}
td {
background-color: blue;
border-style: solid;
border-width: 5px;
border-color: gold;
}
colgroup {
background-color: purple;
}
col:first-child {
background-color: khaki;
}
.rel {
position: relative;
bottom: 175px;
}
</style>
</head>
<body>
<table>
<colgroup>
<col>
<col>
</colgroup>
<thead class="rel">
<tr>
<td class="rel">XXX</td>
<td class="rel">YYY</td>
</tr>
</thead>
<tbody class="rel">
<tr>
<td class="rel">XXX</td>
<td>YYY</td>
</tr>
<tr>
<td>XXX</td>
<td rowspan=2 class="rel">YYY</td>
</tr>
<tr class="rel">
<td class="rel">XXX</td>
</tr>
<tr>
<td colspan=2 class="rel">XXX</td>
</tr>
</tbody>
<tfoot>
<tr>
<td class="rel">XXX</td>
<td>YYY</td>
</tr>
</tfoot>
</table>
</body>