<style> div.class2{ background-color:#0F0; } div.class3{ display:none; background-color:#f00; } div.class2:hover div.class3{ display:block; } </style> <div class="class2"> qwer <div class="class3"> asdf </div> </div> <div class="class2"> qwer <div class="class3"> asdf </div> </div>