.product-sets-links {
    display: flex;
    justify-content: flex-start;
    align-items: center;
}
.product-sets-links .itm {
    padding: 10px;
    font-size: 14px;
    background: #e9ebe7;
    transition: 0.3s;
}
.product-sets-links .itm:hover {
    background: #243;
    color: #fff;
}
.product-sets-links .itm:first-child {
    border-radius: 30px 0 0 30px;
    padding-left: 15px;
    border-right: 1px solid #c1c3c0;
}
.product-sets-links .itm:last-child {
    border-radius: 0 30px 30px 0;
    padding-right: 15px;
    border-left: 1px solid #c1c3c0;
}
.product-sets-links .active-set {
    background: #243;
    color: #fff;
}
.product-sets-links  .itm{
    padding: 10px;
    font-size: 14px;
    background: #e9ebe7;
    transition: 0.3s;
    position: relative;
    border: none;
    outline: none;
}