.scrollTopBtn {
    position: fixed;
    bottom: 10px;
    left: 50%;
    width: 40px;
    height: 40px;
    z-index: 99;
    display: none;
    margin-left: -560px;
    text-align: center;
    font-size: 10px;
    border-radius: 50%;
}

.scrollTopBtn i {
    border-top: 2px solid #ff0102;
    width: 24px;
    margin: 0 auto;
    display: block;
    line-height: 12px;
    text-align: center;
    font-size: 16px;
}

.scrollTopBtn i:before {
    content:"\e763";
}

.scrollTopBtn,
.scrollTopBtn:hover,
.scrollTopBtn:active,
.scrollTopBtn:focus {
    color: #ff0102;
    text-decoration: none;
}

body.showScrollTopButton .scrollTopBtn {
    display: block;
}