Important note or instruction.

Warning about possible errors or important notes to which you should pay special attention.

Anti-virus network

A term in the position of a definition or a link to a definition.

<IP-address>

Placeholders.

Cancel

Names of buttons, windows, menu items and other program interface elements.

ctrl

Keyboard keys names.

C:\Windows\

Names of files and folders, code examples.

Appendix А

Cross-references or internal hyperlinks to web pages.