What are some alternatives?
When comparing Fire.app and Bulma, you can also consider the following products
Prepros - Compile Less, Sass, Scss, Stylus, Jade, Coffeescript, Haml and Markdown with live browser refresh.
Bootstrap - Simple and flexible HTML, CSS, and JS for popular UI components and interactions
Koala - INTELLIGENT LIVE CHAT FOR EFFECTIVE CUSTOMER SUPPORT
Foundation - The most advanced responsive front-end framework in the world
CodeKit - CodeKit allows you to optimize the performance of your website by automatically and efficiently compiling a variety of popular languages.
Semantic UI - A UI Component library implemented using a set of specifications designed around natural language