#ssttbutton {
position: fixed;
right: 30px;
bottom: 20px;
padding: 5px;
box-sizing: content-box;
cursor: pointer;
font-family: Fontawesome;
font-weight: normal;
text-align: center;
text-decoration: none;
vertical-align: middle;
z-index: 9999;
}
#ssttbutton:hover {
-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
filter: alpha(opacity=100);
-moz-opacity: 1;
-khtml-opacity: 1;
opacity: 1;
}
.ssttbutton-transparent {
-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=50)";
filter: alpha(opacity=50);
-moz-opacity: .5;
-khtml-opacity: .5;
opacity: .5;
}