text: 'use strict';
  
  let arrRGB = [];
  
  const randomNumber = (min, max) => {
    return Math.floor(Math.random() * (max - min + 1)) + min;
  }
  
  const generateRandomRGB = () => {
    for (let i = 0; i < 9; i++) {
      let r = randomNumber(0, 255);
      let g = randomNumber(0, 255);
      let b = randomNumber(0, 255);
      let rgbBG = `rgba(${r}, ${g}, ${b}, 1)`;
      arrRGB.push(rgbBG);
    }
  }
  
  generateRandomRGB();
  
  function setDivColors() {
    var box = $('.box');
    for (let i = 0; i < box.length; i++) {
      let divEl = document.getElementById(box[i].id);
      for (let j = 0; j < arrRGB.length; j++) {
        $(divEl).css('background-color', arrRGB[i]);
      }
    }
  }
  
  setDivColors();
  