BrowserVersionOwn?TypeAs String
BW1.1.0???
Chrome85.0.4183???
Edge86.0.622???
Firefox68.0.0???
Firefox79.0.0ownfunctionfunction CSSFontFeatureValuesRule() { [native code] }
IE10.0.0???
Safari10.1.2???

PropertiesBWChromeEdgeFirefoxIESafari
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??