I recommend learning about BEM and Inverted Triangle CSS (itcss) approaches. ITCSS dramatically improved how I write css as it naturally works with the cascade

I recommend learning about BEM and Inverted Triangle CSS (itcss) approaches. ITCSS dramatically improved how I write css as it naturally works with the cascade and removes most duplicate efforts. https://www.xfive.co/blog/itcss-scalable-maintainable-css-architecture/ https://www.xfive.co/blog/itcss-scalable-maintainable-css-ar... https://www.digitalocean.com/community/tutorials/how-to-solve-large-scale-css-bottlenecks-with-itcss-and-bem https://www.digitalocean.com/community/tutorials/how-to-solv... Also, css-tricks.com is a great resource and a hub of the css community. SCSS / Sass is the most mature, stable, and powerful professional grade CSS extension language. Apart from these I’d look into using consistent type scales https://type-scale.com/ https://type-scale.com/ and definitely learn css-grid.