<th class="val time"><:= coltoggle(build => 'build') :></th>
<th class="unit" colspan="2"><:= coltoggle(qw'size size') :></th>
<th class="unit unit-attr" colspan="2">attr</th>
<th class="val time"><:= coltoggle(build => 'build') :></th>
<th class="unit" colspan="2"><:= coltoggle(qw'size size') :></th>
<th class="unit unit-attr" colspan="2">attr</th>