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

.com_aside .aside_item:nth-child(1) {
    order: 2;
    margin-top: 30px;
}

.com_aside .aside_item:nth-child(2) {
    order: 1;
    margin-top: 0;
}

.com_aside .aside_item:nth-child(3) {
    order: 3;
}