Mobile design UI pattern libraries & guides
Recap of mobile design resources:https://learnmobile.design/ Mobile design patterns libraries:https://mobbin.com/ https://www.uisources.com/home Pttrns.com (paid service with 3-days-free-trial) iOS icon gallery: https://www.iosicongallery.com/ More patterns recopilations: https://uxarchive.com/ https://uxarchive.com/
NPM trends HTML CSS frameworks
https://npmtrends.com/bootstrap-vs-bulma-vs-foundation-sites-vs-semantic-ui-vs-tailwindcss-vs-uikit