Lower case, and likewise for webpage, web address (but three cap Ws and no hyphen for the World Wide Web, in the unlikely event that you ever need to refer to it that way).

This is quite easy, really: "that" defines, "which" gives extra information (often in a clause enclosed by commas):

This is the house that Jack built; but this house, which John built, is falling down.
The Guardian, which I read every day, is the paper that I admire above all others.
I am very proud of the sunflowers that I grew from seed (some of the sunflowers);
I am very proud of the sunflowers, which I grew from seed (all the sunflowers).

While in normal circumstances 'who' is used to refer only to people and 'which' or 'that' to refer to things, on the home.cern website we try to refer to departments and organisations (since they are made up of people) as 'who'.

Use the following word counts for content types on the public website. These formats are defined in detail under the Formats tab above. You'll notice from the table that word counts in French are approximately 30% longer.

The following is a list of the web editor's pet peeves. It is intended to make writers think more about simple use of English, and for editors to cut jargon where possible and avoid overusing clichés. We encourage you to avoid these words, except in direct quotes.

Please note that this list does not apply to official documents, which often use a more formal language, or texts for a scientific audience.

Access (as a verb)

And/or (Logic gates do not belong in prose)