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

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic supportChrome Full support 1Edge Full support YesFirefox Full support YesIE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support YesOpera Android Full support YesSafari iOS Full support YesSamsung Internet Android ?


Full support  
Full support
Compatibility unknown  
Compatibility unknown

Document Tags and Contributors

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