How do I remove the blue border that appears when clicking on a uib-accordion-heading?

Question

I\'ve tried the solutions presented in the following questions to no avail:

Remove blue border from css custom-styled button in Chrome

How to remove the blue box

Answer 1

Everyone who has a problem with not working outline: 0/none - try to set:

:focus {
  outline: 0 !important;
  box-shadow: 0 0 0 0 rgba(0, 0, 0, 0) !important;
}