.scroll_to_top {
    position: fixed;
    right: 30px;
    bottom: 30px;
    display: block;
    width: 30px;
    height: 30px;
    border: 1px solid #e3e3e3;
    border-radius: 3px;
    opacity: 0;
    visibility: hidden;
    background: #F8F8F8 url(../img/to_top.svg) no-repeat center;
    background-size: 70%;
    transition: all 0.15s ease-in-out;
    z-index: 10;
}

.scroll_to_top.active {
    opacity: 0.6;
    visibility: visible;
}

.scroll_to_top.active:hover {
    opacity: 1;
}
.modal--show{pointer-events: all;}
.modal:not(.modal--show){pointer-events: none;}