yarn add styled-components

import styled from "styled-components";

const Wrapper = styled.section`
    background: black;
  `;

const Home = (): JSX.Element => (
  <Wrapper>
    // ....
  </Wrapper>
)

{
  "presets": [
    "next/babel"
  ],
  "plugins": [
    [
      "babel-plugin-styled-components",
      {
        "ssr": true,
        "displayName": true,
      }
    ],
    "inline-react-svg" // SVGファイルを使うための設定
  ]
}

npx sb init