Typed styled components for ReScript

styled-ppx is the ppx that brings typed styled components to ReScript, allowing you to create React Components with type-safe style definitions that look like good old CSS.

styled-ppx is built on top of emotion, so you can style your apps in a safe, familiar, and performant way.

module Center = %styled.div(`
  height: 100vh;
  width: 100vw;
  display: flex;
  align-items: center;
  justify-content: center;
`)
 
<Center>
  {React.string("Hello from the future!")}
</Center>

module Center = %styled.div(`
  height: 100vh;
  width: 100vw;
  display: flex;
  align-items: center;
  justify-content: center;
`)
 
<Center>
  {React.string("Hello from the future!")}
</Center>

Highlights:

• Type-safe CSS.
• Component-based styling.
• Implements utility helpers such as classname and css.
• There's no abstraction over standard CSS - it's neither a new language nor a DSL.
• Supports the power of the underlying language: pattern-matching, composition, labelled arguments, etc.
• Built on top of emotion.

styled-ppx is a ppx. You can learn more about ppxs in Tarides blog: Introduction to OCaml ppx ecosystem. Generally speaking, they are similar to babel plugins. They run before the compilation of your code, and expands styled-ppx notations (e.g., %styled.div%styled.div or %cx%cx) into valid ReScript code.