Is you plan to add ability to position element relatively to its parent
NOT to its position in normal flow (relative)
NOT to its containing block (absolute)
<div style="position: absolute; left: 50px; top: 150px; border: 1px solid red;">
TESTCASE #2
<table border=1><tr>
<td>HELLO</td><td><div style="position: absolute; left:40px; top:12px; background: red;">aa</div></td>
</tr>
<tr>
<td>HELLO</td><td>HELLO<select style="position: parent; left:0px; top:0px; background: blue;"></select></td>
</tr>
</table>
</div>
So its look like this:
And NOT:
like in 'relative' positioning
And NOT:
like in 'absolute' positioning
