.custom-add-to-cart a.custom-btn,
.dr-custom-add-to-cart a.dr-custom-btn {
opacity: 0.7;
transition: opacity 0.3s ease;
display: inline-block;
}
.custom-add-to-cart a.custom-btn.modified,
.dr-custom-add-to-cart a.dr-custom-btn.modified {
opacity: 1 !important;
pointer-events: auto;
}