title: how to render a react component using ReactDOM Render
body: <pre><code>_Header (cshtml) 
  
  &lt;div id="Help"&gt;&lt;/div&gt;
  
  
  export default class Help {
      ReactDOM.render(     
             &lt;Help/&gt;,
             document.getElementById('Help')        
          );
  }
  
  Help.js (component)
  
  
  }
  </code></pre>
  
  <p>My goal is to render a help button on header.</p>
  
  <p>I've Created div tag with id help-modal , and a 
  component rendering help button. I am connection those two in help.js
   by ReactDOM.render(.........);
      when I do npm run dist and dotnet run , and see the browser 
  I couldn't see the button on header . Can any one help on this please ??</p>