.pbspoiler{
    display: block;
    padding-left: 14px;
    margin-top: 5px;
}

.folded {
    display: block;
    background: transparent url(../down.gif) no-repeat left center;
    padding-left: 14px;
}
.unfolded {
    display: block;
    background: url(../up.gif) no-repeat left 5px;
    padding-left: 14px; 
} 

div.pbspoiler_title  {
  cursor: pointer;
  color: #007af4;
  font-weight: bold;
  z-index: 100;  
}