.app-header {
    background-color: var(--bs-app-header-minimize-bg-color);
    box-shadow: var(--bs-app-header-minimize-box-shadow);
    border-bottom: var(--bs-app-header-minimize-border-bottom);
}

.app-toolbar.app-toolbar-vk {
    background-color: #f7f7f7;
    border-bottom: 1px solid rgba(0,0,0,.12);
    border-top: 1px solid rgba(0,0,0,.12);
}