How use change a blue and orange a borders?

It’s very simple; I see you’ve modified the blue table now, so I assume you found the right tag. However, if you want to modify the table borders, you need to locate the ".links" ".heading" "h4" tags in your CSS; for the line with your name, it’s "h1". I recommend trying `transparent` for the "h4" tag to achieve a cleaner look. Of course, you can experiment however you like—you just need the tags I mentioned.