How Can I Change size of the circles?

I saw a code and i was trying to modify the size of the circles, but i don't know whither i can change it using js or css .Is there any way to change it ?

The full code is from: https://codepen.io/XTn-25/pen/NWqeBaz

hesr is js code:

/**
 * index.js
 * - All our useful JS goes here, awesome!
 Maruf-Al Bashir Reza
 */

console.log("JavaScript is amazing!");
$(document).ready(function($) {
  function animateElements() {
    $('.progressbar').each(function() {
      var elementPos = $(this).offset().top;
      var topOfWindow = $(window).scrollTop();
      var percent = $(this).find('.circle').attr('data-percent');
      var percentage = parseInt(percent, 10) / parseInt(100, 10);
      var animate = $(this).data('animate');
      if (elementPos < topOfWindow + $(window).height() - 30 && !animate) {
        $(this).data('animate', true);
        $(this).find('.circle').circleProgress({
          startAngle: -Math.PI / 2,
          value: percent / 100,
          thickness: 14,
          fill: {
            color: '#1B58B8'
          }
        }).on('circle-animation-progress', function(event, progress, stepValue) {
          $(this).find('div').text((stepValue * 100).toFixed(1) + "%");
        }).stop();
      }
    });
  }

  // Show animated elements
  animateElements();
  $(window).scroll(animateElements);
});