.sidebar {
    height: 100vh !important;
    top: 0;
    padding-top: 55px;
}

.app-top-header {
    position: fixed;
    top: 0;
    left: 200px;
    width: calc(100% - 200px);
    height: 55px;
    background-color: #ffffff;
}

.app-top-header-dashboard {
    width: 100%;
}