@importThe @import CSS at-rule loads styles from another stylesheet.cssCSSwidely2015-07-292018-01-29https://drafts.csswg.org/css-cascade-5/#at-importhttps://developer.mozilla.org/docs/Web/API/CSSImportRuleapi.CSSImportRuleapi.CSSImportRule.hrefapi.CSSImportRule.mediaapi.CSSImportRule.styleSheetcss.at-rules.importhttps://nowyoucanuse.com/features--import.html