.t-feed__col-grid__post-wrapper {
    position: relative;
}

.t-feed__col-grid__post-wrapper:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background-color: #3D5AFE; 
}

@media (min-width: 960px) {
    .js-feed-post.t-feed__post.t-item.t-width.t-feed__grid-col.t-col.t-col_6.t-align_left {
        margin: 11px 12px 11px 12px !important;
    }
}

@media (max-width: 959px) {
    .js-feed-post.t-feed__post.t-item.t-width.t-feed__grid-col.t-col.t-col_6.t-align_left {
        margin: inherit !important;
        margin-bottom: 24px !important;
    }
    
    .js-feed-post.t-feed__post.t-item.t-width.t-feed__grid-col.t-col.t-col_6.t-align_left:last-child {
        margin-bottom: 0 !important;
    }
}