Is it possible to disable on click selection highlight

Is it possible to disable on click selection the highlight on an img?

 

Yes Mr scammer, it is

<style>
a,a:hover,a:click, a:visited{
  border:none;
  outline:none;
  text-decoration:none;
  color:inherit;
}
</style>
 

Code (markup):

or
a.image-link:focus { outline:0;}

But you need to remember to always define an alternative style (such as changing color, or changing image background, to make the user know that it's being clicked). Else, DON'T DO IT!.
People who use keyboard to navigate rely on this outline to know which link they are focusing.