BrowserVersionOwn?TypeAs String
BingPreview1.0.0???
Chrome27.0.1500???
Chrome49.0.2623ownfunctionfunction CSSImportRule() { [native code] }
Chrome69.0.3497???
Chrome70.0.3538ownfunctionfunction CSSImportRule() { [native code] }
Chrome72.0.3626???
Chrome74.0.3729ownfunctionfunction CSSImportRule() { [native code] }
Chrome79.0.3945???
Chrome80.0.3987ownfunctionfunction CSSImportRule() { [native code] }
Chrome85.0.4183???
Chrome86.0.4240ownfunctionfunction CSSImportRule() { [native code] }
Chrome89.0.4354???
Chrome89.0.4386ownfunctionfunction CSSImportRule() { [native code] }
Chrome90.0.0???
Chrome90.0.4430ownfunctionfunction CSSImportRule() { [native code] }
Chrome91.0.4455???
Edge85.0.564???
Edge86.0.622ownfunctionfunction CSSImportRule() { [native code] }
Edge87.0.651???
Edge87.0.658ownfunctionfunction CSSImportRule() { [native code] }
Edge87.0.664???
Edge88.0.670ownfunctionfunction CSSImportRule() { [native code] }
Edge88.0.705???
Firefox46.8.0???
Firefox51.0.0ownfunctionfunction CSSImportRule() { [native code] }
Firefox52.0.0???
Firefox78.0.0ownfunctionfunction CSSImportRule() { [native code] }
Firefox88.0.0???
Firefox89.0.0ownfunctionfunction CSSImportRule() { [native code] }
IE10.0.0ownobject[object CSSImportRule]
Safari4.0.0ownfunctionfunction CSSImportRule() { [native code] }
Safari7.0.0???
Safari10.1.2ownfunctionfunction CSSImportRule() { [native code] }
Safari13.0.3ownfunctionfunction CSSImportRule() { [native code] }
Safari13.0.4ownfunctionfunction CSSImportRule() { [native code] }
SamsungBrowser13.0.0???
SFive80.0.0ownfunctionfunction CSSImportRule() { [native code] }
TkBot0.1.0???
YandexBot3.0.0ownfunctionfunction CSSImportRule() { [native code] }

PropertiesBingPreviewChromeEdgeFirefoxIESafariSamsungBrowserSFiveTkBotYandexBot
CHARSET_RULE? 49.0.0 86.0.622 51.0.0? 4.0.0? 80.0.0? 3.0.0
COUNTER_STYLE_RULE??? 51.0.0??????
FONT_FACE_RULE? 49.0.0 86.0.622 51.0.0? 4.0.0? 80.0.0? 3.0.0
FONT_FEATURE_VALUES_RULE??? 51.0.0??????
IMPORT_RULE? 49.0.0 86.0.622 51.0.0? 4.0.0? 80.0.0? 3.0.0
KEYFRAMES_RULE? 49.0.0 86.0.622 51.0.0? 4.0.0? 80.0.0? 3.0.0
KEYFRAME_RULE? 49.0.0 86.0.622 51.0.0? 4.0.0? 80.0.0? 3.0.0
length? 49.0.0 86.0.622 51.0.0? 4.0.0? 80.0.0? 3.0.0
MEDIA_RULE? 49.0.0 86.0.622 51.0.0? 4.0.0? 80.0.0? 3.0.0
NAMESPACE_RULE? 49.0.0 86.0.622 51.0.0? 4.0.0? 80.0.0? 3.0.0
PAGE_RULE? 49.0.0 86.0.622 51.0.0? 4.0.0? 80.0.0? 3.0.0
prototype? 49.0.0 86.0.622 51.0.0 10.0.0 4.0.0? 80.0.0? 3.0.0
STYLE_RULE? 49.0.0 86.0.622 51.0.0? 4.0.0? 80.0.0? 3.0.0
SUPPORTS_RULE? 49.0.0 86.0.622 51.0.0? 4.0.0? 80.0.0? 3.0.0
UNKNOWN_RULE????? 10.0.0????
WEBKIT_KEYFRAMES_RULE? 49.0.2623??? 10.0.0????
WEBKIT_KEYFRAME_RULE? 49.0.2623??? 10.0.0????
WEBKIT_REGION_RULE????? 10.0.0????