The best alternatives to Spectre.css are Tailwind CSS, Material UI, and Bulma. If these 3 options don't work for you, we've listed over 10 alternatives below.
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A highly customizable, low-level CSS framework that gives you all of the building blocks you need to build bespoke designs without any annoying opinionated styles you have to fight to override.
Unnamed is a colorful mini css framework Read more about How & why I made it here: https://www.codementor.io/ismail16smakosh23/my-short-journey-building-unnamed-my-own-css-framework-csqi9o679
Termwind allows you to build unique and beautiful PHP command-line applications, using the Tailwind CSS API with an HTML Renderer. In short, it's like Tailwind CSS, but for the PHP command-line applications.
Front-end framework based on CSS-Grid. You like frameworks providing components, but utility-first frameworks too ? Axentix is here to provide everything you need without dependencies : a lot of components you can customize using our utility classes.