.noselect{-webkit-touch-callout:none;-webkit-user-select:none;-khtml-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}iframe.process-preview{width:100%;height:100%;border:0}.test-css-theme{margin-top:16px}.logo{background-image:url(https://placehold.co/200x100?text=Custom+logo);width:200px;height:100px;margin-bottom:16px}