• Name: Masaaki Morishita
  • Handle name: morishitter
  • Job: UI Designer, Web Developer
  • Mail: morishitter [at]

Skills & Knowledge

As a Developer

  • Build UIs on the web
  • CSS Architecture
  • CSS Preprocessors (like Sass, Less, etc)
  • Node.js for building front-end toolchains
  • CSS, JavaScript, Ruby, PHP

As a Designer

  • Build design systems
  • Information Architecture
  • Ergonomics
  • Color theory
  •, Illustrator


  • Master of Engineering, Major:Design Science, 2015, Wakayama University, Japan
  • Bachelor of Engineering, Major:Design and Informations, 2013, Wakayama University, Japan

Career History

  • 2016/08 - Present, Application Engineer at Increments inc.
  • 2015/04 - 2016/07, Software Engineer at CyberAgent inc.

Personal Projects

  • YACP: Yet Another CSS Preprocessor
  • AtCSS: Annotations based CSS Processor
  • postcss-style-guide: PostCSS plugin to generate a style guide automatically
  • stylefmt: Modern CSS Formatter
  • scssfmt: Standard SCSS code formatter
  • Picostyle: Ultra small CSS in JS library

And I created some CSS tools and JS libraries. All of my code are in GitHub.