next.js/examples/with-edgedb/components/Layout.tsx

import React, { ReactNode } from "react";
import Header from "./Header";

type Props = {
  children: ReactNode;
};

const Layout: React.FC<Props> = (props) => (
  <div style={{ paddingBottom: "30px" }}>
    <Header />
    <div className="layout">{props.children}</div>
    <style jsx global>{`
      html {
        box-sizing: border-box;
      }

      *,
      *:before,
      *:after {
        box-sizing: inherit;
      }

      body {
        margin: 0;
        padding: 0;
        font-size: 16px;
        font-family:
          -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
          Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji",
          "Segoe UI Symbol";
        background: rgba(0, 0, 0, 0);
      }

      input,
      textarea,
      button {
        font-size: 16px;
      }

      button {
        cursor: pointer;
      }
    `}</style>
    <style jsx>{`
      .layout {
        padding: 0 2rem;
      }
    `}</style>
  </div>
);

export default Layout;