@jonathon-eng
Posted
To answer your first question, the most common and easy way to keep the hover color after selecting was just to build it using radio buttons and styling them to look like the sample. To achieve that with your method could require a lot more (and possibly unnecessary javascript)
The second question seems to be to the fact that you built the site using 2 html files and you are linking them via the submit button. There's a bunch of stuff regarding that fact, but the point is that I don't think manipulating localStorage is necessary, and frankly required, for a task that can be done in one page.
One way to solve that issue is to just put the finished card directly from your typage.html into your index.html and hide it with CSS. Then upon submitting, you can just toggle between showing and hiding the start and complete cards with some Javascript.