Because it's:
ThodaCSS weighs in at just under 7 KiB.
ThodaCSS has a clean, flat design. Nothing flashy.
ThodaCSS is separated into separate SCSS files. Use only what you need. Custom builds can be even smaller!
ThodaCSS is reponsive. Go on, resize this window to give it a try.
ThodaCSS's code is hosted on GitHub, released under the terms of the MIT license.
Code licensed under MIT · Made with <3 by Vivek Ghaisas (@polybuildr).