Remove blue border while/after clicking button

Hello, everyone.

I’m having problems trying to remove a blue border (outline?) that appears while/after clicking a button.
I tried to alter in my theme a css class that is applied when a button is clicked called “.v-pressed” but I didn’t have any success doing it.

Is there any way to remove it?

it’s about focus selector, try

.v-button:focus:after {
border-color: transparent;
webkit-box-shadow: none;
box-shadow: none;

Thank you, Haijian. It worked. :smiley: