Web and Internet should be accessible to everyone. This self-evident concept gives rise to another important principle, which modern UI developers should bear in mind: present-day web applications should be usable by all community members regardless of their physical abilities.
If you develop with Webix, you don’t have to worry about accessibility. From version 4.0 all its UI components have been enhanced to meet the standards. The article below tells about the main accessibility hallmarks in the library.