.b-top {
/*
z-index:2600;position:fixed;left:0;bottom:90px;width:40%;margin-left:50%;opacity: 0.5;filter:alpha(opacity=50);*/

z-index: 2600;
    position: fixed;
    right: 30px;
    bottom: 50px;
    /* width: 40%; 
    margin-left: 50%; */
    filter:alpha(opacity=50);
    opacity: 0.5;

}
.b-top:hover {opacity:1;filter:alpha(opacity=100);cursor:pointer;}
.b-top-but {
/*z-index:2600;position:absolute;display:block;left:56px;bottom:0;margin:0 0 0 100%;padding:64px 44px 4px;
color:white;background:#D8D5C2 url(/sm_full.aspx?guid=2523) no-repeat 50% 11px;border-radius:7px;
*/
    z-index: 2600;
    /* position: absolute; */
    display: block;
    left: 56px;
    /* bottom: 0; */
    /* margin: 0 0 0 100%; */
    /* padding: 64px 44px 4px; */
    width: 80px;
    height: 80px;
    color: white;
    background: #D8D5C2 url(/sm_full.aspx?guid=2523) no-repeat 50%;
    border-radius: 7px;

}