chakra-ui/apps/www/components/mdx/heading.tsx

import { Box, BoxProps } from "@chakra-ui/react"

export const H1 = (props: BoxProps) => {
  return (
    <Box
      as="h1"
      css={{
        color: "fg",
        fontSize: "1.5em",
        letterSpacing: "-0.02em",
        marginTop: "0",
        marginBottom: "0.8em",
        lineHeight: "1.2em",
        fontWeight: "medium",
        scrollMarginTop: "calc(var(--header-height) + 1.5em)",
      }}
      {...props}
    />
  )
}

export const H2 = (props: BoxProps) => {
  return (
    <Box
      as="h2"
      css={{
        color: "fg",
        fontSize: "1.3em",
        letterSpacing: "-0.02em",
        marginTop: "1.6em",
        marginBottom: "0.8em",
        lineHeight: "1.4em",
        fontWeight: "semibold",
        scrollMarginTop: "calc(var(--header-height) + 1.5em)",
        "& code": { fontSize: "0.9em" },
        "& + *": { marginTop: "0" },
        "& a": { font: "inherit!" },
      }}
      {...props}
    />
  )
}

export const H3 = (props: BoxProps) => {
  return (
    <Box
      as="h3"
      css={{
        color: "fg",
        fontSize: "1.2em",
        letterSpacing: "-0.01em",
        marginTop: "1.5em",
        marginBottom: "0.4em",
        fontWeight: "semibold",
        lineHeight: "1.5em",
        scrollMarginTop: "calc(var(--header-height) + 1.5em)",
        "& code": { fontSize: "0.9em" },
        "& + *": { marginTop: "0" },
        "& a": { font: "inherit!" },
      }}
      {...props}
    />
  )
}

export const H4 = (props: BoxProps) => {
  return (
    <Box
      as="h4"
      css={{
        color: "fg",
        marginTop: "2em",
        marginBottom: "0.8em",
        letterSpacing: "-0.01em",
        fontWeight: "semibold",
        lineHeight: "1.5em",
        scrollMarginTop: "calc(var(--header-height) + 1.5em)",
        "& + *": { marginTop: "0" },
        "& a": { font: "inherit!" },
      }}
      {...props}
    />
  )
}