.next, .prev { 
    /* absolute positioning relative to the overlay */ 
    position:absolute; 
    top:40%; 
 
    /* upcoming CSS3 rounded border feature */ 
    -moz-border-radius:5px; 
    -webkit-border-radius:5px; 
} 
 
/* progress indicator (animated gif). should be initially hidden */ 
.progress { 
    position:absolute; 
    top:45%; 
    left:50%; 
    display:none; 
} 
 
/* active thumbnail is raised on top of the mask using the z-index property */ 
#thumbs a.active img { 
    outline:1px solid #000; 
    z-index:9999; 
    position:relative; 
}