styled component not working with media query code example

Example 1: define a media query in styled components

const CardWrapper = styled.div`
  display: flex;
  flex-direction: row;
  @media (max-width: 768px) {
    flex-direction: column;
  }
`;

Example 2: media queries in styled components

export const device = {
  mobileS: `(min-width: ${size.mobileS})`,
  mobileM: `(min-width: ${size.mobileM})`,
  mobileL: `(min-width: ${size.mobileL})`,
  tablet: `(min-width: ${size.tablet})`,
  laptop: `(min-width: ${size.laptop})`,
  laptopL: `(min-width: ${size.laptopL})`,
  desktop: `(min-width: ${size.desktop})`,
  desktopL: `(min-width: ${size.desktop})`
};