.stt-top { /* One of these will hide it without using display:none =P */
display:block;
text-indent:-9999em;
font-size:0;
line-height:0;
height:0;
visibility:hidden;
}
.stt-gototop {
position:fixed;
z-index:5000;
bottom:40px;
right:40px;
background:url("http://rootless.jp/wp-content/stt-images/dwieeb_arrow_darker.png") no-repeat top left;
text-indent:-9999em;
width:30px;
height:30px;
}
.stt-gototop:hover,
.stt-gototop:active,
.stt-gototop:focus {
outline:0;
}