index.css

body {
  margin: 0;
  height: 2000px;
}

.icon-bar {
  position: fixed;
  top: 50%;
  -webkit-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  transform: translateY(-50%);
}

.icon-bar a {
  display: block;
  text-align: center;
  padding: 16px;
  transition: all 0.3s ease;
  color: white;
  font-size: 20px;
}

.icon-bar a:hover {
  background-color: #eeebdd;
  color: #3b5998;
}

.facebook {
  background: #3b5998;
  color: white;
}

.twitter {
  background: #3b5998;
  color: white;
}

.google {
  background: #3b5998;
  color: white;
}

.linkedin {
  background: #3b5998;
  color: white;
}

.youtube {
  background: #3b5998;
  color: white;
}

.darkmode-toggle {
  position: absolute;
}

.darkmode-toggle {
  background: #100f2c;
  width: 3rem;
  height: 3rem;
  position: fixed;
  border-radius: 50%;
  border: 2px solid rgb(236, 236, 243);
  left: 70.2rem;
  top: 30px;
  cursor: pointer;
  transition: all 0.5s ease;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

#menu .active {
  color: #37517e;
  background-color: white;
}