.st_unavailable_selected_combination {
    position: relative;
}

.st_unavailable_selected_combination::before,
.st_unavailable_selected_combination::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 10%;
    right: 10%;
    height: 1px;
    background: rgba(120, 120, 120, 0.35);
    pointer-events: none;
    z-index: 2;
}

.st_unavailable_selected_combination::before {
    transform: rotate(35deg);
}

.st_unavailable_selected_combination::after {
    transform: rotate(-35deg);
}