content: import React from 'react';
  
  export default function Header() {
    return (
      <header className="header">
        <div className="header_brand">
          Keyboard Simulator
        </div>
        <nav className="header_nav">
          <ul className="header_nav-list">
            <li className="header_nav-item link-github">
              <a href="https://github.com/ryym/web-keyboard-simulator">
                GitHub
              </a>
            </li>
          </ul>
        </nav>
      </header>
    );
  }
  