make sure content is structured logically and can be navigated and read by a screen reader (include headings, lists and other semantic elements to communicate document structure)
sicrhau bod cynnwys wedi'i strwythuro'n rhesymegol a bod modd i raglen darllen sgrin ei lywio a'i ddarllen (dylech gynnwys penawdau, rhestrau ac elfennau semantig eraill i gyfleu strwythur dogfennau)