highlight.js

var HIGHLIGHT = (function(){
    var boxShadow = "0 0 15px rgba(81, 250, 200, 1)";
    var border = "1px solid rgba(81, 250, 200, 1)";

    return {
        glow: function(element) {
            var originalBoxShadow = element.style.boxShadow;
            var originalBorder = element.style.border;
            
            setInterval(function(){
                element.style.boxShadow = boxShadow;
                element.style.border = border;
                
                setTimeout(function() {
                    element.style.boxShadow = originalBoxShadow;
                    element.style.border = originalBorder;
                }, 1000);
            }, 2000);
        }
    };
})();