.content_holder {
    display: flex;
    flex-direction: column;
}

.column_content {
    display: flex;
    flex-flow: row wrap;
    gap: 100px;
    justify-content: space-between;
}

.column_content div {
    max-width: 100%;
}

@media screen and (max-width: 1000px) {
    .column_content {
        flex-direction: column;
        gap: 50px;
        align-items: center;
    }

    .column_content > div {
        width: 100%;
    }

    .column_content .mainpage_news_holder,
    .column_content .mainpage_events {
        width: 100%;
    }
}