An example of GlobalStyles with styled-components

styled-component-global-styles.js

import { createGlobalStyle } from 'styled-components';

const GlobalStyles = createGlobalStyle`
  body {
    overflow-y: hidden;
  }
`;

const PageWithoutScrollbar = () => {
  return (
    <>
      <GlobalStyles />
      <h1>Hello</h1>
    </>
  )
}

export default PageWithoutScrollbar;