.previous{
margin-top: 4px;
float: left;
width: 32px;
height: 32px;
background: transparent url(prev.png) no-repeat 0 0;
cursor: pointer;
}

.next{
margin-top: 4px;
float: left;
width: 32px;
height: 32px;
background: transparent url(next.png) no-repeat 0 0;
cursor: pointer;
}

.previous:hover,
.next:hover{
background-position: -32px 0;
}

.previous:active,
.next:active{
background-position: -64px 0;
}
 
.previous-disable,
.previous-disable:hover,
.previous-disable:active,
.next-disable,
.next-disable:hover,
.next-disable:active{
cursor: default;
background-position: -96px 0;
}
  
.photo_list li em {
display: none;
}

#photo_gallery {
width:555px;
}

.photo_list {
list-style: none;
}

.photo_list li{
margin: 10px;
float: left;
}
	
.photo_navi{
height: 40px;
width: 555px;
background-color: #edf3f7;
}