css-vars-ponyfill

Client-side support for CSS custom properties (aka "CSS variables") in legacy and modern browsers

clientcomponentcsscustom propertiescustom propertycustomdomes6ieie9ie10ie11internet explorerjavascriptjslegacymodulemutationobserverpolyfillponyfillpropertiespropertyruntimeshadowvariablesvarswatchweb

https://jhildenbiddle.github.io/css-vars-ponyfill/