html body
.ns-bitrix.c-news-list.c-news-list-shares-blocks-2
.news-list-items
.news-list-item:hover
.news-list-item-picture-container {
    -webkit-box-shadow: none !important;
    -moz-box-shadow: none !important;
    box-shadow: none !important;
}


.ns-bitrix.c-news-list.c-news-list-shares-blocks-2
.news-list-item-picture {
    -webkit-transition: box-shadow 0.3s ease;
    -moz-transition: box-shadow 0.3s ease;
    transition: box-shadow 0.3s ease;
}


html body
.ns-bitrix.c-news-list.c-news-list-shares-blocks-2
.news-list-items
.news-list-item:hover
.news-list-item-picture {
    -webkit-box-shadow: 0 10px 24px 0 rgba(0, 0, 0, 0.35);
    -moz-box-shadow: 0 10px 24px 0 rgba(0, 0, 0, 0.35);
    box-shadow: 0 10px 24px 0 rgba(0, 0, 0, 0.35);
}