#back {
background: transparent url("/images/arrow-back.png") left 11% center no-repeat;
-moz-transition:bottom 250ms ease-in-out 0s;top:200px;left:0px;padding:15px 2px 20px;right:15px;width:77px;background-color:#F0EDED;background-image:-moz-linear-gradient(center top,#FDFAFB,#F9F7F7 50%,#F6F3F4 50%,#F0EDED);border-color:#BBB;color:#524D4D;text-shadow:0 1px rgba(255,255,255,0.9);border-radius:0 0.3em 0.3em 0;border-width:0;box-shadow:0 0 #FFF,0 1px 3px rgba(34,25,25,0.5);display:block;font-size:15px;position:fixed;text-align:center;z-index:4; text-decoration:none;
filter:progid:DXImageTransform.Microsoft.Alpha(opacity=70);
-moz-opacity: 0.7;
-khtml-opacity: 0.7;
opacity: 0.7;
}
#back:hover {
filter:progid:DXImageTransform.Microsoft.Alpha(opacity=100);
-moz-opacity: 0.99;
-khtml-opacity: 0.99;
opacity: 0.99;
}