.js-store-prod-slider.t-col.t-col_6.t-store__prod-popup__col-left.t-store__prod-popup__slider {
    position: absolute;
}

.t-store__prod-popup__info.t-align_left.t-store__prod-popup__col-right.t-col.t-col_6 {
    margin-left: 620px;
}

.js-store-tabs.t-store__tabs.t-store__tabs_accordion.t-col.t-col_12 {
    max-width: 560px;
    margin-left: 620px;
    margin-top: 0px;
}

@media (max-width: 1240px) {
    .t-store__prod-popup__info.t-align_left.t-store__prod-popup__col-right.t-col.t-col_6 {
        margin-left: 520px;
    }

    .js-store-tabs.t-store__tabs.t-store__tabs_accordion.t-col.t-col_12 {
        max-width: 580px;
        margin-left: 520px;
        margin-top: 0px;
    }
}

@media (max-width: 960px) {
    .t-store__prod-popup__info.t-align_left.t-store__prod-popup__col-right.t-col.t-col_6 {
        margin-left: 0px;
        margin-top: 0px; /* если нужно опустить под слайдер */
        position: relative;
    }

    .js-store-tabs.t-store__tabs.t-store__tabs_accordion.t-col.t-col_12 {
        max-width: 100%;
        margin-left: 0px;
        margin-top: 20px;
    }

    .js-store-prod-slider.t-col.t-col_6.t-store__prod-popup__col-left.t-store__prod-popup__slider {
        position: relative;
    }
}

.t-store__tabs__content a {
  border: 5px solid #839791;
  background-color: #839791;
  color: #ffffff !important;
  font-size: 16px;
  padding: 10px 20px;
  text-align: center;
  display: inline-block;
  text-decoration: none;
  cursor: pointer;
  border-radius: 6px;
}

.t-checkbox__indicator {
    border: 2px solid #ffffff
}