Cover letter
One page. Who you are writing to, why this role, two proofs, and how to reach you. Your name and contact details come from your CV.
Pro feature. You can write and preview here for free; downloading the PDF needs the Pro pack (R99 once). See what’s in Pro.
Use a name if the advert gives one; otherwise “Hiring Manager”.
A blank line starts a new paragraph.
Tip: keep it under 300 words. Name the company once in the opening and once in the closing; recruiters skim for it.