The var() Function

CSS variables can be set using custom properties (that begin with two dashes like --main-color-name) and accessed throughout a CSS document by using the functional notation var().

Syntax for var()

	Syntax
CSS Custom Properties for Cascading Variables Level 1	var( <custom-property-name> [, <declaration-value> ]? )

Recommended Links

• CanIUse.com: Search "var()" (compatibility information)
• CanIEmail.com: Search "var()" (email client compatibility information)
• CSS Custom Properties for Cascading Variables Level 1: var()
• MDN: var()

Search Engine Links (for more information)

• Bing "CSS var function"
• Google "CSS var function"