A quick prototype interface for a writing app

app.html

<table style="width: 80%; margin:auto">
 <tr>
  <td contenteditable style="width: 50%; border: 1px solid lightgrey; padding: 20px; vertical-align: top;"></td> 
  <td contenteditable style="width: 50%; border: 1px solid lightgrey; padding: 20px; vertical-align: top;"></td>
 </tr>


 <tr>
  <td contenteditable style="width: 50%; border: 1px solid lightgrey; padding: 20px; vertical-align: top;"></td> 
  <td contenteditable style="width: 50%; border: 1px solid lightgrey; padding: 20px; vertical-align: top;"></td>
 </tr>

</table>

Paste the text into https://htmledit.squarefree.com/ to render and try it.

Here's a twitter thread where I explain the idea behind the prototype. https://twitter.com/dela3499/status/1233951450352570368?s=20