text: import React from 'react'
  
  class Header extends React.Component {
      constructor(props){
          super(props);
          this.state = {
  
          }
      }
      componentDidMount() {
  
      }
      componentWillUnmount() {
  
      }
      render(props) {
          return (
              <div>
                  <h1>This is a header</h1>
              </div>
          )
      }
  }