body { background:#222; padding:0px; margin:0px; }
#sit_pvi_nw {text-align:center; background:#222; margin-top:60px; }
#sit_pvi_nwbig {padding:0;text-align:center}
#sit_pvi_nwbig span {display:none}
#sit_pvi_nwbig span.visible {display:inline}
#sit_pvi_nwbig span.visible img { max-width:100%; height:auto; }
.img_thumb_box { position:fixed; top:0; left:0; height:60px; width:100%; text-align:center; z-index:9999; background:#000; }
.img_thumb img {width:60px;height:60px}
