Modern websites often have CSS files with repeated values, such as a few colors reused throughout the page in a color scheme. Altering this data can be tedious and error-prone, since it’s scattered throughout one or more CSS files.

To improve this, Chrome now supports

CSS custom properties

, allowing developers to define property variables in CSS without using external frameworks. Developers can then use the

var() function

to

reference these custom properties

anywhere in the document.