Sam Magura

Why We're Breaking Up with CSS-in-JS

Screenshot of “Why We're Breaking Up with CSS-in-JS”

Thanks for reading this deep dive into runtime CSS-in-JS. Like any technology, it has its pros and cons. Ultimately, it's up to you as a developer to evaluate these pros and cons and then make an informed decision about whether the technology is right for your use case. For us at Spot, the runtime performance cost of Emotion far outweighed the DX benefits, especially when you consider that the alternative of Sass Modules + utility classes still has a good DX while providing vastly superior performance.


  1. Do you know good tutorials and/or examples about dealing with responsive images that are fluid horizontaly, but with a fixed height?

    Using object-fit: cover; in the CSS is easy, but how can we prevent loading many pixels that will be hidden, without using too many <source> in a <picture>?