.t-store__prod-popup__btn_disabled,
.t-store__prod-popup__btn_disabled td.js-store-prod-popup-buy-btn-txt{
    font-size: 0;
}

.t-store__prod-popup__btn_disabled:after,
.t-store__prod-popup__btn_disabled td.js-store-prod-popup-buy-btn-txt:after{
    content: "Скоро в продаже"; 
    font-size: 14px; 
    color: #000100 
}