function toggleMenu() {
  const menu = document.querySelector(".menu-links");
  const icon = document.querySelector(".hamburger-icon");
  menu.classList.toggle("open");
  icon.classList.toggle("open");
}

const blob = document.getElementById("blob");

window.onpointermove = event => { 
  const { clientX, clientY } = event;
  
  blob.animate({
    left: `${clientX}px`,
    top: `${clientY}px`
  }, { duration: 3000, fill: "forwards" });
}