JSFiddle - React, Tailwind, and code Playground

HTML

<div class='selectElement'></div><div class='selectElement'></div><div class='selectElement'></div><div class='selectElement'></div><div class='selectElement'></div><div class='selectElement'></div><div class='selectElement'></div><div class='selectElement'></div><div class='selectElement'></div><div class='selectElement'></div><div class='selectElement'></div><div class='selectElement'></div><div class='selectElement'></div><div class='selectElement'></div><div class='selectElement'></div><div class='selectElement'></div><div class='selectElement'></div><div class='selectElement'></div><div class='selectElement'></div>

CSS

.selectElement {
  height:30px;
  width: 30px;
  border: 1px solid  black;
}

JavaScript

$(".selectElement").on("click", function() {
    var randomElements = $(".selectElement").get().sort(function() {
        return Math.round(Math.random()) - 0.5;
    }).slice(0, 5);
    $(randomElements).css('border', '1px solid red');
});