var credit = document.createElement("div");
credit.className="footer__block footer__credit";
var creditLink = document.createElement("a");
var creditCopy= document.createTextNode("Design by Pixel & Flow");
creditLink.href="https://www.etsy.com/shop/pixelandflow";
creditLink.appendChild(creditCopy);
credit.appendChild(creditLink);
var footer = document.getElementsByClassName("footer__container");
footer[0].appendChild(credit);