Brackets
Avoid using brackets where possible. Not all screen readers will read them out. This means text inside the brackets will be read alongside the text outside the brackets, which could be confusing. Rewrite the sentence or use commas to break it up instead.
If you have to use brackets, use round brackets ( ).
Do not use round brackets to refer to something that could either be singular or plural. For example, 'Check which document(s) you need to send'. Always use the plural instead, as this will cover both possibilities: 'Check which documents you need to send'.
Only use [square brackets] for placeholder text.
Design System
Go to our Design System for details of our visual styles, components and patterns.