BrowserVersionOwn?TypeAs String
Chrome81.0.4044???
Edge86.0.622???
Firefox68.0.0???
Firefox79.0.0ownfunctionfunction CSSCounterStyleRule() { [native code] }
HeadlessChrome81.0.4044???
IE10.0.0???
Safari10.1.2???

PropertiesChromeEdgeFirefoxHeadlessChromeIESafari
CHARSET_RULE?? 79.0.0???
COUNTER_STYLE_RULE?? 79.0.0???
FONT_FACE_RULE?? 79.0.0???
FONT_FEATURE_VALUES_RULE?? 79.0.0???
IMPORT_RULE?? 79.0.0???
KEYFRAMES_RULE?? 79.0.0???
KEYFRAME_RULE?? 79.0.0???
length?? 79.0.0???
MEDIA_RULE?? 79.0.0???
NAMESPACE_RULE?? 79.0.0???
PAGE_RULE?? 79.0.0???
prototype?? 79.0.0???
STYLE_RULE?? 79.0.0???
SUPPORTS_RULE?? 79.0.0???