.trick 
{
  //border: 1px solid green;
  clear:both;
}

.trick div div
{
  position: absolute;
  width:    65px;
  background-color: red;
  display:  none;
}

.trick div
{
  float:left;
  margin-bottom:10px;
}

.trick div:hover div
{
 display:block;
}

.comment
{
  background-color:green;
}