@nguyenmv2/buy-button/src/styles/embeds/sass/components/modal.css

BuyButton.js allows merchants to build Shopify interfaces into any website

:root {
  --modal-height: 570px;
  --modal-footer-height: 90px;
}

.shopify-buy__btn--close {
  right: 0px;
  font-size: 45px;
  font-weight: 100;
  z-index: var(--max-z-index);
  padding: 0 10px;
}

.shopify-buy__modal {
  background: var(--color-white);
  width: calc(100% - 20px);
  position: absolute;
  left: 0;
  right: 0;
  z-index: calc(var(--max-z-index) - 1);
}

.shopify-buy__product {
  text-align: left;
}

.shopify-buy__product__title,
.shopify-buy__product__price,
.shopify-buy__product__variant-title {
  text-align: left;
}

.shopify-buy__product__title {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.4;
}

.shopify-buy__product__compare-price {
  display: inline-block;
  margin-right: 5px;
}

.shopify-buy__product__actual-price {
  display: inline-block;
}

.shopify-buy__modal .shopify-buy__modal-product-wrapper {
  width: 100%;
}

.shopify-buy__product__variant-image {
  margin: 0;
}

@media (max-width: 499px) {
  body.is-active {
    overflow: hidden;
    position: fixed;
    height: 100vh;
    transition: all 0s;
  }

  .shopify-buy__modal {
    width: 100%;
    min-height: 100vh;
    position: fixed;
    overflow-y: auto;
  }

  .shopify-buy__product {
    padding: var(--gutter);
    position: absolute;
    top: 0;
    left: 0;
  }

  .shopify-buy__product__variant-img {
    max-height: 60vh;
    margin: 0 auto;
    width: auto;
    max-width: 100%;
  }

  .shopify-buy__btn--close {
    position: fixed;
    top: 0;
    right: 0;
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-200px);
    -webkit-transform: translateY(-200px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
    -webkit-transform: translateY(0);
  }
}

@keyframes slideOut {
  from {
    opacity: 1;
    transform: translateY(0);
    -webkit-transform: translateY(0);
  }

  to {
    opacity: 0;
    transform: translateY(-200px);
    -webkit-transform: translateY(-200px);
  }
}

@media (min-width: 500px) {
  html,
  body.is-active {
    height: 100%;
  }

  .shopify-buy__modal-overlay {
    width: 100%;
    height: 100%;
    position: fixed;
    overflow-y: scroll;
  }

  .shopify-buy__modal {
    margin: 100px auto 40px auto;
    opacity: 0;
    border-radius: 2px;
    border: 1px solid rgba(0, 0, 0, 0.72);
    transform: translateY(-200px);
    max-width: 1000px;
    animation: 200ms slideOut forwards;
  }

  .is-active {
    & .shopify-buy__modal {
      animation-name: slideIn;
    }
  }

  .shopify-buy__product {
    padding: calc(var(--gutter) * 2);
  }

  .shopify-buy__product-img-wrapper {
    height: 100%;
    padding-right: calc(var(--gutter) * 2);
  }

  .shopify-buy__product__variant-img {
    margin: 0 auto;
  }

  .shopify-buy__btn--close {
    top: -60px;
    color: color-mod(var(--color-white) lightness(+10%));

    &:hover {
      color: var(--color-white);
    }
  }
}

@media (min-width: 680px) {
  .shopify-buy__product {
    padding: calc(var(--gutter) * 3);
  }
}