1234567891011121314151617import React, { ReactElement, useState } from "react";
import { Button } from "@react-md/button";
import { Collapse } from "@react-md/transition";

import Page1 from "./Page1";

export default function Demo(): ReactElement {
  const [collapsed, setCollapsed] = useState(true);
  return (
    <>
      <Button onClick={() => setCollapsed(!collapsed)}>Toggle</Button>
      <Collapse collapsed={collapsed}>
        <Page1 />
      </Collapse>
    </>
  );
}