jqwidgets-framework/demos/Angular/src/responsivepanel/fluidsize/app.component.css

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

jqxResponsivePanel > div, jqxPanel > div {
  float: left;
}

jqxTree > div {
  border: none !important;
}

.jqx-rc-all {
  border-radius: 0px;
}

body, html {
  width: 100%;
  height: 100%;
  padding: 0;
  margin: 0;
}