@media (max-width:  639px) {
.t951__sidebar {
    position: sticky;
    top: 90px;
    background-color: #f2f2f2 !important; /*тут цвет фона фильтра*/
    padding: 4px 10px !important;
    margin: 8px 5px 20px;
    box-shadow: 3px 5px 20px 0px rgba(0,0,0,0.1);
    z-index: 500;
    border-radius: 5px;
}

.t951__sidebar .t-store__filter.js-store-filter {
    margin: 0 !important;
}

.t951__sidebar .t-store__filter__controls-wrapper {
    align-items: flex-end;
}

.t951 .t951__sidebar .t-store__filter__chosen-bar {
    background-color: #f2f2f2;!important;
}

.t-store__filter__chosen-bar {
    display: none;
}

.t951__sidebar-wrapper:has(.t-store__filter__opts-mob-btn.active) + .t-store__filter__chosen-bar {
    display: block;
}

.t-store__filter__chosen-bar .t-store__filter__chosen-wrapper {
    margin-bottom: 0;
    margin-top: 12px;
}

.t951__sidebar .t-store__filter__chosen-val {
    padding: 3px 8px 4px 20px;
    margin-bottom: 8px;
    margin-right: 8px;
    line-height: 1;
}

.t951__sidebar .t-store__filter__chosen-val:after {
    font-size: 11px;
    height: 10px;
    left: 4px;
}

.t951__sidebar .t-store__filter__prods-number {
    margin-bottom: 4px;
}
.t-store__filter__opts-mob-btn.active:before {
    content: '';
    position: absolute;
    margin-top: 2px;
    background-image: url(https://img.icons8.com/material-rounded/24/delete-sign.png);
    background-size: cover;
    background-color: #f2f2f2;
    width: 20px;
    height: 20px;
}