jellyfin-web/dashboard-ui/css/metadataeditor.css

.editPageContent {
    padding: 0;
}

.editPageInnerContent {
    padding: 0 15px 100px;
}

.editPageName {
    margin: .5em 0 0;
}

.editPageSidebar {
    display: none;
}

.offlineEditorNode {
    color: #cc3333;
}

.editorNode img {
    height: 18px;
    margin: 0 .35em;
    vertical-align: middle;
    position: relative;
    top: -2px;
}

@media all and (min-width: 600px) {

    .editPageSidebar {
        position: fixed;
        top: 36px;
        bottom: 0;
        left: 0;
        width: 27.5%;
        overflow-y: scroll;
        overflow-x: auto!important;
        display: block;
    }

    .editPageInnerContent {
        float: right;
        width: 70%;
    }
}