Firefox (windows) not recognising border-style: inset; - HTML & CSS - SitePoint Forums | Web Development & Design Community
csstree on Twitter: "⭐️ Updated CSS syntax reference to use latest CSSTree and mdn/data dictionaries https://t.co/BgN5K3FfA4 https://t.co/xh0l3w5pkC" / Twitter
Understanding the “Initial”, “Inherit” and “Unset” CSS Keywords | by Elad Shechter | Medium