The CSSStyleDeclaration.getPropertyPriority() method interface returns a DOMString that provides all explicitly set priorities on the CSS property.


var priority = style.getPropertyPriority(property);


  • property is a DOMString representing the property name to be checked.

Return value

  • priority is a DOMString that represents the priority (e.g. "important") if one exists. If none exists, returns the empty string.


The following JavaScript code checks whether margin is marked as important in a CSS selector rule:

var declaration = document.styleSheets[0].cssRules[0].style;
var isImportant = declaration.getPropertyPriority('margin') === 'important';


Specification Status Comment
CSS Object Model (CSSOM)
The definition of 'CSSStyleDeclaration.getPropertyPriority()' in that specification.
Working Draft  
Document Object Model (DOM) Level 2 Style Specification
The definition of 'CSSStyleDeclaration' in that specification.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support Yes Yes Yes Yes Yes Yes
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support Yes Yes Yes Yes Yes Yes ?

Document Tags and Contributors

Contributors to this page: connorshea, Youssef-Belmeskine, david_ross, Qantas94Heavy
Last updated by: connorshea,