.expand{ font-size:13px;
  color:#464646;!important}

.expand a {
  display:block;
  font-size:13px;
   color:#464646;}

.expand a:link, .expand a:visited {
   background: url(../images/plus_btn.png) no-repeat 98% 50%;
}
.expand a:hover{
  background: url(../images/plus_btn2.png) no-repeat 98% 50%;
}
.expand a.open:link, .expand a.open:visited {
  background: url(../images/plus_btn1.png) no-repeat 98% 50%;
 }