JSFiddle - React, Tailwind, and code Playground

by Vitaliy

HTML

<button class="btn">click</button>

CSS

.btn:focus{
  outline:2px solid #3246ac;
}
.btn:active{
  outline:0;
}

JavaScript

var btns = document.querySelectorAll(".btn")
for(var i = 0, l = btns.length; i < l; i++){
  btns[i].addEventListener("click", function(){
    this.blur();
  });
}