Avoid putting text into text boxes. Screen-readers cannot navigate into text boxes, making the content in them invisible.
Lowercase letters are easier to read – avoid using capitals for continuous text.
High contrast makes documents more legible. Make sure any colour used in your document has high colour contrast.
Avoid using colour alone to convey meaning - if you use colour to convey information (for example, by formatting certain items in a list in a different colour) then ensure that this is accompanied by a text alternative.
Strong is useful for highlighting and emphasising text – italics and underlining can make text more difficult to read.
Numbers from one to nine are easier to read (in normal text) if they are written as words – numbers from 10 upwards should be presented as numerals
Justify text to the left – this makes it easier to find the start and end of each line and ensures an even gap between words.