Esc
↑↓ navigate   Enter open   Esc close

CSS & Frontend

CSS Custom Property

/siː es es ˈkʌstəm ˈprɒpəti/

Definition

A CSS variable (--property-name: value) that holds reusable values and can be updated dynamically via JavaScript.

Example in context

"We use --color-primary as a CSS variable — dark mode just reassigns it, no extra selectors needed."

Related terms

  • Cascade — The algorithm that determines which CSS rules apply when multiple conflicting declarations target the same element.

Practice this term

Master CSS Custom Property in context by working through exercises in the CSS & Frontend module. You'll see the term used in real engineering scenarios with multiple-choice, fill-in-the-blank, and matching drills.

Practice in exercises → Browse all words

Frequently Asked Questions

What does "CSS Custom Property" mean?

A CSS variable (--property-name: value) that holds reusable values and can be updated dynamically via JavaScript.

How do you pronounce "CSS Custom Property"?

"CSS Custom Property" is pronounced /siː es es ˈkʌstəm ˈprɒpəti/.

Can you use "CSS Custom Property" in a sentence?

"We use --color-primary as a CSS variable — dark mode just reassigns it, no extra selectors needed."