<!DOCTYPE html>
 <html>
 <head>
 <meta charset="utf-8">
 <link rel="author" title="Brandon Stewart" href="mailto:brandonstewart@apple.com">
 <link rel="help" href="https://drafts.csswg.org/css-grid-1">
 <meta name="assert" content="Ensure text does not overflow upon re-layout of grid">
 </head>

 <style>
 .grid { 
   display: grid; 
   grid-template-columns: minmax(min-content, 100px) auto; 
 }

 .nested_grid {
   border: 5px solid; 
   display: grid; 
   justify-items: baseline; 
   overflow-wrap: break-word;
 }

 </style>
 <body>
 <div id="grid" class=grid>
   <div id="nested_grid" class=nested_grid><p id="paragraph">This content will overflow.</p></div>
 </div>
 </body>

 </html>