@font-face{ font-family: 'Source Sans 3'; font-display: swap; font-weight: 200; font-style: normal; font-stretch: normal; src: url('WOFF2/TTF/SourceSans3-ExtraLight.ttf.woff2') format('woff2'), url......format('woff2'), url('WOFF/OTF/SourceSans3-ExtraLight.otf.woff') format('woff');...format('woff2'), url('WOFF/OTF/SourceSans3-ExtraLightIt.otf.woff') format('woff');...