BrowserVersionOwn?TypeAs String
BingPreview1.0.0???
Chrome27.0.1500???
Edge85.0.564???
Firefox46.8.0???
Firefox70.0.0ownfunctionfunction CSSFontFeatureValuesRule() { [native code] }
Firefox88.0.0???
Firefox89.0.0ownfunctionfunction CSSFontFeatureValuesRule() { [native code] }
IE10.0.0???
Safari4.0.0???
SamsungBrowser13.0.0???
SFive80.0.0???
TkBot0.1.0???
YandexBot3.0.0???

PropertiesBingPreviewChromeEdgeFirefoxIESafariSamsungBrowserSFiveTkBotYandexBot
CHARSET_RULE??? 70.0.0??????
COUNTER_STYLE_RULE??? 70.0.0??????
FONT_FACE_RULE??? 70.0.0??????
FONT_FEATURE_VALUES_RULE??? 70.0.0??????
IMPORT_RULE??? 70.0.0??????
KEYFRAMES_RULE??? 70.0.0??????
KEYFRAME_RULE??? 70.0.0??????
length??? 70.0.0??????
MEDIA_RULE??? 70.0.0??????
NAMESPACE_RULE??? 70.0.0??????
PAGE_RULE??? 70.0.0??????
prototype??? 70.0.0??????
STYLE_RULE??? 70.0.0??????
SUPPORTS_RULE??? 70.0.0??????