One way is to use the multiple class selector (no space as that is the descendant selector):
.reMode_hover:not(.reMode_selected):hover _x000D_
{_x000D_
background-color: #f0ac00;_x000D_
}
_x000D_
<a href="" title="Design" class="reMode_design reMode_hover">_x000D_
<span>Design</span>_x000D_
</a>_x000D_
_x000D_
<a href="" title="Design" _x000D_
class="reMode_design reMode_hover reMode_selected">_x000D_
<span>Design</span>_x000D_
</a>
_x000D_