Flex and Grid

Hi. Congrats on the completion of this project. An extra features you can add is to store the themes state using browser localstorage so that your site can maintain the theme state even if the page was reload. Right now if I switch to light mode and reload the web page its switching back to the default theme. Using browser storage to store the theme and accessing the themes based on user preference will prevent this from happening. https://developer.mozilla.org/en-US/docs/Web/API/Window/localStorage

Well done Joe, you've done a terrific job here. I would suggest you take a little closer look at the errors and try to correct them as it will improve your page semantically. Nice job Joe