change background-color for a tr on hover

Question

I want to change the background-color for a tr on hover, is there a way to select the rows thats going to be affected by that? At this point I'm using

tr:hover td{background:#EDEDED;}

But this changes the backcolor on every tr on my page. Is there a way to make the changes only apply for a tr with example class="change_on_over"

Answer 1

tr.change_on_over:hover td { background:#EDEDED; }