How do you remove the blue border of an image map?

Question

The landing page is a static background image and I created a clickable area with image map. The problem is that a blue border (see image below) shows up when you click on the a

Answer 1

That's looks like the focus state.

You can avoid that defining

*:focus { outline: none; }

but on the other hand, the visible focus is important for people who don't use a mouse or touchpad, i.e. who only use the keyboard for moving around at a page (keyword ACCESSIBILITY), so you should really consider leaving it as is (maybe only change the outline color to fit better in your page)