If any of my #IndieWeb or #mozillian friends know a little CSS Grid I can’t seem to write a correct media query for this https://rssfeed.glitch.me/ to

If any of my #IndieWeb or #mozillian friends know a little CSS Grid I can’t seem to write a correct media query for this https://rssfeed.glitch.me/ to display as one column on small screens. Tried column-templates and setting span 1-8. Edit here please… http://jgregorymcverry.com/5297-2/