.product_b-header {width: 100%;}

.product_b-header--left,
.product_b-header--right {width: 100%;}

.product_b-quantity p {
    width: 2.75rem;
    text-align: center;
}

.product_b-header--center {
    min-width: 5rem;
    margin: 0 1rem;
}

.product_b-option {min-width: max-content;}
.product_b-option[data-select="true"] {text-decoration: underline !important;}
.product_b-options > .product_b-option:not(:last-of-type) {margin-right: .5em;}

.product_b-buy {width: 100%;}
.product_b-header--center img {width: 1.5rem;}

.product_b-gallery {
   scroll-snap-type: x mandatory;
   overflow-x: auto;
}
.product_b-gallery > * {
    scroll-snap-align: center;
    min-width: 100vw;
    max-width: 100vw;
}
@media only screen and (min-width: 768px) {
    .product_b-gallery>* {
        min-width: calc(50vw - 1rem);
        max-width: calc(50vw - 1rem);
    }
}
@media only screen and (min-width: 1200px) {
    .product_b-gallery > * {
        min-width: calc(calc(100vw / 3) - 1.3333rem);
        max-width: calc(calc(100vw / 3) - 1.3333rem);
    }
}
@media (hover: hover) {
    .product_b-buy:hover {text-decoration: underline;}
}