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Edit File: woo-mod-quantity-overlap.min.css

.wd-quantity-overlap{--quantity-space: 80px}.wd-quantity-overlap div.quantity{position:absolute;bottom:0;inset-inline-start:0;z-index:2;height:100%;filter:brightness(0.95);transform:translate3d(0, 0, 0)}.wd-quantity-overlap div.quantity input[type]{height:100%;border:none;background-color:var(--btn-accented-bgcolor);box-shadow:var(--btn-accented-box-shadow);color:var(--btn-accented-color);transition:all .25s ease}.wd-quantity-overlap div.quantity input[type]:hover{filter:brightness(0.95)}.wd-quantity-overlap div.quantity input[type="button"]{min-width:25px;border-radius:0}.wd-quantity-overlap div.quantity:not(.hidden)+.button,.wd-quantity-overlap div.quantity:not(.hidden)+link+.button,.wd-quantity-overlap div.quantity:not(.hidden)+link+link+.button{padding-inline-start:var(--quantity-space)}.wd-quantity-overlap div.quantity:not(.hidden)+.button:before,.wd-quantity-overlap div.quantity:not(.hidden)+link+.button:before,.wd-quantity-overlap div.quantity:not(.hidden)+link+link+.button:before{inset-inline-start:var(--quantity-space)}.wd-quantity-overlap div.quantity:not(.hidden)+.button:after,.wd-quantity-overlap div.quantity:not(.hidden)+link+.button:after,.wd-quantity-overlap div.quantity:not(.hidden)+link+link+.button:after{inset-inline-start:calc(50% - 9px + var(--quantity-space) / 2)}.wd-quantity-overlap div.quantity:not(.hidden)+.single_add_to_cart_button{padding-inline-start:calc(20px + var(--quantity-space))}.wd-quantity-overlap :is(div,.cart):hover>div.quantity input[type],.wd-quantity-overlap :is(div,.cart):hover>div.quantity+.button{background-color:var(--btn-accented-bgcolor-hover);box-shadow:var(--btn-accented-box-shadow-hover);color:var(--btn-accented-color-hover)}.wd-quantity-overlap :is(div,.cart):active>div.quantity{bottom:var(--btn-accented-bottom-active)}.wd-quantity-overlap :is(div,.cart):active>div.quantity input[type],.wd-quantity-overlap :is(div,.cart):active>div.quantity+.button{box-shadow:var(--btn-accented-box-shadow-active)}.wd-quantity-overlap div.quantity:active{bottom:0 !important}.wd-quantity-overlap div.quantity:active input[type],.wd-quantity-overlap div.quantity:active+.button{box-shadow:var(--btn-accented-box-shadow) !important}