While I realize this issue has been discussed extensively, none of the suggested solutions have worked for me. As a final attempt to resolve it, I am turning to you all here.
The point at which my root div stops is puzzling:
I've explicitly defined the html and body CSS style as follows in my index.css file:
html, body { height: 100%; width: 100%; }
Despite this configuration, the content still does not extend fully upwards.
Any thoughts on how to troubleshoot this problem?