As the saying goes: God lives in the details, but in a big team, it's extremely hard to maintain the accordance through different parts of our app without a guidance of styling. Aim at delivering better user experience and better performance, our two-man team began our journey of designing and developing our front-end style guide. As the program conductor, my job include tech and tools research, building style tile with PM and UI and half design and development job. By mixing KSS, Sass, gulp, fontcustom and other related tools with creative innovation in design phase, the result was quite better than what we were expected.
Live PHP site here.