#id_scroll_top {
    position: fixed;
    bottom: 60px;
    right: 0;
    width: 40px;
    height: 80px;
    display: none;
    z-index: 2000;
}

.scroll_top_inner {
    position: relative;
    cursor: pointer;
    width: 40px;
    height: 64px;
    background-color: #ab0000;
    border-radius: 6px 0 0 6px;
}

.scroll_top_inner:before {
    content: "";
    position: absolute;
    top: 22px;
    left: 10px;
    width: 0;
    height: 0;
    border-right: 10px solid transparent;
    border-left: 10px solid transparent;
    border-bottom: 10px solid #ffffff;
}

.scroll_top_inner:after {
    content: "";
    position: absolute;
    top: 32px;
    left: 15px;
    width: 10px;
    height: 10px;
    background-color: #ffffff;
}

.scroll_top_inner:hover {
    background-color: #FF0000;
	-webkit-transition:background-color 0.4s;-o-transition:background-color 0.4s;transition:background-color 0.4s;
}