.woocommerce div.product .single_add_to_cart_button {
  display: inline-block;
  vertical-align: middle;
  transform: perspective(1px) translateZ(0);
  box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
@keyframes hvr-pulse-shrink {
  to {
    transform: scale(0.9);
  }
}
.woocommerce div.product .single_add_to_cart_button:hover,
.woocommerce div.product .single_add_to_cart_button:focus,
.woocommerce div.product .single_add_to_cart_button:active {
  animation-name: hvr-pulse-shrink;
  animation-duration: 0.3s;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
  animation-direction: alternate;
}
.woocommerce .wc-proceed-to-checkout .button {
  display: inline-block;
  vertical-align: middle;
  transform: perspective(1px) translateZ(0);
  box-shadow: 0 0 1px rgba(0, 0, 0, 0);
  transition-duration: 0.3s;
  transition-property: transform;
}
.woocommerce .wc-proceed-to-checkout .button:active,
.woocommerce .wc-proceed-to-checkout .button:focus,
.woocommerce .wc-proceed-to-checkout .button:hover {
  transform: scale(0.9);
}
@media screen and (max-width: 375px) {
  .woocommerce div.product .single_add_to_cart_button {
    display: inline-block;
    vertical-align: middle;
    transform: perspective(1px) translateZ(0);
    box-shadow: 0 0 1px rgba(0, 0, 0, 0);
  }
  @keyframes hvr-pulse-shrink {
    to {
      transform: scale(0.9);
    }
  }
  .woocommerce div.product .single_add_to_cart_button:hover,
  .woocommerce div.product .single_add_to_cart_button:focus,
  .woocommerce div.product .single_add_to_cart_button:active {
    animation-name: hvr-pulse-shrink;
    animation-duration: 0.3s;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
    animation-direction: alternate;
  }
}