https://tailwindcss.com/
https://bulma.io/
https://css-tricks.com/snippets/css/a-guide-to-flexbox/
https://www.jqueryscript.net/other/Dynamic-Tree-View-Plugin-jQuery-Boots...
https://www.sitepoint.com/13-jquery-selectboxdrop-down-plugins/
https://www.jqueryscript.net/demo/User-friendly-Multi-select-List-Plugin... https://www.jqueryscript.net/demo/Dual-Multi-Select-jQuery-Picklist/ https://www.jqueryscript.net/demo/Drop-Down-Combo-Tree/
https://www.jqueryscript.net/form/jQuery-Plugin-For-Seachable-Option-Lis...
https://gojs.net/latest/sample/
http://www.adobe.com/pl/products/xd.html?scid=social52541916
https://swisnl.github.io/jQuery-contextMenu/demo.html
http://silviomoreto.github.io/bootstrap-select/examples/
