• I tried using the @types/styled-component package and had problems.
• I tried using the latest stable version of tsc. https://www.npmjs.com/package/typescript
• I have a question that is inappropriate for StackOverflow. (Please ask any appropriate questions there).
• Mention the authors (see Definitions by: in index.d.ts) so they can respond.
  • Authors: @Igorbek, @Igmat @lavoaster @Kovensky

I tried using the new css prop (https://medium.com/styled-components/announcing-native-support-for-the-css-prop-in-styled-components-245ca5252feb) with the babel typescript presets and the styled-component babel-plugin.

This runs fine but type-checking fails because type definition does not extend builtin components (div, button...) with the 'css' prop.

Note that a similar prop seems to be supported in emotionjs type definitions by globally extending the react module:

declare module 'react' {
  interface DOMAttributes<T> {
    css?: InterpolationWithTheme<any>
  }
}

See
https://github.com/emotion-js/emotion/blob/1b7333a837813949fa4fe301bb0d53887e784b8b/packages/core/types/index.d.ts#L83