jqwidgets-framework/demos/React-TSX/ribbon/events/src/App.css

jQWidgets is an advanced Angular, Vue, Blazor, React, Web Components, jquery, ASP .NET MVC, Custom Elements and HTML5 UI framework.

html, body {
    width: 100vw;
    height: 100vh;
    padding: 0;
    margin: 0;
    overflow: hidden;
}

table {
    border-collapse: separate;
    border-spacing: 15px 5px;
}

.jqx-panel div:first-child {
    border: none;
}