#menu {
  z-index: 2;
}

#menu-bar {
  width: 40px;
  height: 40px;
  margin: 20px 10px 0 10px;
  cursor: pointer;
}

.bar {
  height: 4px;
  width: 100%;
  background-color: Black;
  display: block;
  border-radius: 4px;
  transition: 0.3s ease;
}

#bar1 {
  transform: translateY(-6px);
}

#bar3 {
  transform: translateY(6px);
}

.nav {
  transition: 0.3s ease;
  display: none;
}

.nav ul {
  padding: 0 20px;
}

.nav li {
  list-style: none;
  padding: 2px 0;
}

.nav li a {
  color: Black;
  text-decoration: none;
}

.nav li a:hover {
  font-weight: bold;
}

.menu-bg, #menu {
  top: 0;
  left: 0;
  position: fixed;
}

.menu-bg {
  z-index: 1;
  width: 100px;
  height: 100px;
  margin: -40px 0 20px -30px;
  background: radial-gradient(PapayaWhip 10%, White 70%);
  border-radius: 50%;
  transition: 0.3s ease;
  opacity: 0.7;
}

.change {
  display: block;
}

.change .bar {
  background-color: Black;
}

.change #bar1 {
  transform: translateY(4px) rotateZ(-45deg);
}

.change #bar2 {
  opacity: 0;
}

.change #bar3 {
  transform: translateY(-5px) rotateZ(45deg);
}

.change-bg {
  width: 550px;
  height: 550px;
  transform: translate(-60%,-30%);
  opacity: 1;
}