CSSStyleDeclaration.removeProperty()

• property
  • A string representing the property name to be removed. Multi-word property names are hyphenated and not camel-cased.

A string equal to the value of the CSS property before it was removed.

NoModificationAllowedError DOMException

Thrown when the property or declaration block is read-only.

The following JavaScript code removes the background-color CSS property from a selector rule:

const declaration = document.styleSheets[0].rules[0].style;
const oldValue = declaration.removeProperty('background-color');