How to use the @xstyled/styled-components.h2 function in @xstyled/styled-components

right: 0;
  width: 50%;
  height: auto;
  transform: translate(20%, 30%);
  animation: ${rotation} 5s ease-in-out infinite;
  animation-direction: alternate-reverse;

  ${up(
    'md',
    css`
      animation-name: ${rotationMd};
    `,
  )}
`

const WorkshopTitle = styled.h2`
  margin: 0;
  font-size: 50;
  color: lighter;
`

const ClientLogoImg = styled(Img)`
  &.mode-dark {
    filter: brightness(0) invert(1);
  }

  &.mode-light {
    filter: brightness(0);
  }
`

function Clients({ clientLogos }) {

import styled, { css } from '@xstyled/styled-components'
import { up } from '@xstyled/system'
import { Container } from './Container'
import { FadeLink } from './Link'

export const Header = styled.header`
  background-color: light200;
  color: darker;
  border-top: 1;
  border-bottom: 1;
  border-color: light300;
`

export const HeaderTitle = styled.h2`
  margin: 0;
  font-weight: 300;
  display: flex;
  align-items: center;
  flex: 1;
  font-size: 18;
  margin-bottom: 2;

  ${up(
    'md',
    css`
      font-size: 24;
      margin-bottom: 0;
    `,
  )}
`

right: 0;
  width: 50%;
  height: auto;
  transform: translate(20%, 30%);
  animation: ${rotation} 5s ease-in-out infinite;
  animation-direction: alternate-reverse;

  ${up(
    'md',
    css`
      animation-name: ${rotationMd};
    `,
  )}
`

const WorkshopTitle = styled.h2`
  margin: 0;
  font-size: 50;
  color: lighter;
`

const ClientLogoImg = styled(Img)`
  &.mode-dark {
    filter: brightness(0) invert(1);
  }

  &.mode-light {
    filter: brightness(0);
  }
`

function Clients({ clientLogos }) {

import styled, { css } from '@xstyled/styled-components'
import { up } from '@xstyled/system'
import { Container } from './Container'
import { FadeLink } from './Link'

export const Header = styled.header`
  background-color: gray800;
  color: white;
  border-top: 1;
  border-bottom: 1;
  border-color: gray700;
`

export const HeaderTitle = styled.h2`
  margin: 0;
  font-weight: 300;
  display: flex;
  align-items: center;
  flex: 1;
  font-size: 18;
  margin-bottom: 2;

  ${up(
    'md',
    css`
      font-size: 24;
      margin-bottom: 0;
    `,
  )}
`

import { useMustBeEmail, InputField, Button } from '../components/Form'

export const FormLayout = styled.div`
  display: flex;
  flex-direction: column;
  margin: -2 -3;

  ${up(
    'md',
    css`
      flex-direction: row;
    `,
  )}
`

const Teaser = styled.h2`
  font-size: 26;
  font-weight: 500;
  color: lighter;
  margin: 4 0;
`

const Success = styled.div`
  text-align: center;

  p:first-child {
    font-size: 26;
    color: lighter;
    margin: 2 0;
  }

  p:last-child {