How to remove the blue box shadow border in button if clicked

Question

I want to do is remove the button blue box shadow effect in my class btnd if the button is click.

current output:

i tried this but it doesnt w

Answer 1

I deal with this problem just yesterday. You need:

.btnd:focus, .btnd:active, .btnd.active, .btnd:focus:active {
  background-image: none;
  outline: none;
  -webkit-box-shadow: none;
  box-shadow: none;
}

The key is in last selector .btnd:focus:active.