If you are using a zero-config tool with automatic detection of which runtime (classic vs. automatic) should be used and you are already using a React version that has the new JSX runtimes (hence
runtime: 'automatic'being configured automatically for you) such as Create React App 4 then/** @jsx jsx */pragma might not work and you should use/** @jsxImportSource @emotion/react */instead.
Emotion의 css 를 사용하는 경우 파일 최상단에 다음을 추가한다.
/** @jsxImportSource @emotion/react */