.side-next {
    height: 60px;
    width: 100%;
    background-position: -93px -114px;
    background-image: url(../img/sprite.svg);
}
.side-previous {
    height: 60px;
    width: 100%;
    background-position: -13px -114px;
    background-image: url(../img/sprite.svg);
}