@media (min-width: 992px) {
    .backendlayout-subnavigation_left_2_columns .maincontent-wrap {
        order: 2 !important;
    }
    .backendlayout-subnavigation_left_2_columns .subcontent-wrap {
        order: 3 !important;
    }
}
.powermail_form h3, .powermail_legend {
    display:none !important;
}