Leveraging @supports in combination with styled-components

After making the switch to styled-components for my styling, I've been attempting to implement the @supports feature of CSS without success.

The syntax for @supports looks something like this:

@supports (display: grid) {
    .Container {
        background-color: orange;
    }
}

Although the styled-components documentation states:

Note: Ampersands (&) get replaced by our generated, unique classname for that styled component

When trying to use the ampersand as instructed in my code, it doesn't seem to work correctly. Instead, with the following code snippet, an ampersand appears in the CSS output:

const Container = styled.div`
    @supports (display: block) {
      & {
        background-color: seagreen;
      }
    }
`;

Answer №1

There appears to be a legitimate bug in styled-components. The ampersand should not be necessary at all, similar to how media queries work:

const Container = styled.div`
  @supports (display: block) {
    background-color: seagreen;
  }
`;

Unfortunately, it is not functioning properly at the moment. I have submitted an issue with our parser, and hopefully, it will be fixed soon. I will provide an update on this answer once it has been resolved!

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