#totop {
    visibility: hidden;
    display: block;
    text-decoration: none;
    background-color: #0b3853;
    color: #fff;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    position: fixed;
    z-index: 99;
    right: 25px;
    bottom: -55px;
    transition: bottom .2s;
    background-image: url("../../../images/icons/chevron.png");
    background-repeat: no-repeat;
    background-position: center center;
    background-size: 21px 13px;
}
.maritime #totop {
    background-color: #425895;
}
#totop.show {
    bottom: 25px;
}
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}