When applying on-line your cover letter becomes a cover email.

It performs the same function as a letter and should contain the same information.

Specify the position for which you are applying.

Highlight qualifications, skills and experience.

Sentences should be short, preferably under 35 words long.

Keep a balance between the formality of a letter and the informality of an email.

Do not use slang.

Ensure that your contact details are on the email.

Make sure you attach your CV.