.pagination ul li.first a {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    width: auto;
}
.pagination ul li.first a:before {
    content: "";
    width: 13px;
    height: 15px;
    display: block;
    background-image: url(/local/templates/pro100ru/img/arrowimg.svg);
    background-size: cover;
    -ms-flex: 1;
    flex: 1;
    margin-left: 5px;
    transform: rotate(180deg);
}