Comparing to Other CSS Frameworks

Goldilocks-CSS is built using the most up-to-date supported CSS3. Goldilocks-CSS is not backwards compatible with older legacy browsers such as IE. Goldilocks-CSS is positioned to find the balance between comprehensive coverage of the core needs for most designers / developers and sufficient flexibility that includes optional functionality. The designer / developer can choose how much or little of the CSS package they may want to use.

Furthermore, Goldilocks-CSS is built with the end customer in mind. Reduced file size, caching, no javascript required and mobile friendly. Adherence to the latest CSS and HTML standards and best practices ensures compliance with web accessability. Standards compliance and streamlined semantics ensures maintainability and scalability.

Goldilocks-CSS is packaged in four flavours:

  • A core package of layout, and helpers;
  • An extended package of core that also includes common elements;
  • An extended package of core that also includes common elements, icons and components popular with SaaS offerings;
  • An extras package for the extended package and includes elements and components for unique situations;

The table below positions Goldilocks-CSS to its peer group.

CSS framework file comparisons as of 2026
Name Size
Uncomp’d		 Size
Minified		 Size
Compressed		 Site
Skeleton 11 KB 3.2 KB 1.6 KB http://getskeleton.com/
Milligram 10 KB 9 KB 2.5 KB https://milligram.io/
Pure CSS 32 KB 17 KB 3.9 KB http://purecss.io/
MUI 58 KB 45 KB 7.6 KB https://www.muicss.com/
Picnic CSS 57 KB 42 KB 8.7 KB https://picnicss.com/
Spectre 61 KB 47 KB 10 KB https://picturepan2.github.io/spectre/
Minicss 54 KB 46 KB 11.2 KB https://minicss.us/
Schema 74 KB 56 KB 14.4 KB http://danmalarkey.github.io/schema/index.html
Pico CSS 82 KB 70 KB 16 KB https://picocss.com/docs/
Goldilocks Core 75 KB 55.3 KB 9.8 KB
Goldilocks Core + Elements CSS 178.3 KB 145 KB 29.8 KB
Goldilocks Core + Extended CSS
(with icons 14.1 KB compressed)		 178.3 KB 145 KB 29.8 KB
Goldilocks Core + Extended + Extras CSS
(with icons 14.1 KB compressed)		 229.5 KB 186 KB 36.1 KB
Materialize 179 KB 161 KB 26 KB https://materializecss.com/
Bootstrap 300 KB 232 KB 33 KB https://getbootstrap.com/
UIkit 370 KB 314 KB 41 KB https://getuikit.com/
Foundation 200 KB 128 KB 44 KB https://foundation.zurb.com/
Tailwind 3,700 KB 660 KB 77 KB https://tailwindcss.com/
Metro 4 905 KB 737 KB 92 KB https://metroui.org.ua/index.html
Semantic UI 829 KB 564 KB 101 KB https://semantic-ui.com/
Bulma 746 KB 262 KB 123 KB https://bulma.io/