styles.css

button {
  cursor: pointer;
}

.button {
  border-radius: 25px;
  border: 1px solid #212121;
  background-color: #fff;
  transition-duration: 0.3s;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
  outline: none;
}

.button:hover {
  background-color: #212121;
  color: #fff;
}

.button:active {
  background-color: #424242;
  color: #fff;
  box-shadow: 0 6px 12px rgba(0,0,0,0.16), 0 6px 12px rgba(0,0,0,0.23);
}

#orbit-nav-container {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  transition-duration: 0.3s;
  pointer-events: none;
}

.orbit-btn {
  position: absolute;
  align-items: center;
  background-color: #ff9800;
  border-radius: 50%;
  width: 20vw;
  height: 20vw;
  max-width: 95px;
  max-height: 95px;
  display: flex;
  justify-content: center;
  text-decoration: none;
  color: #fff;
  font-family: sans-serif;
  padding: 10px;
  transition-duration: 0.3s;
  transition-timing-function: ease-out;
}

.orbit-btn.out {
  pointer-events: all;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}
.orbit-btn.out:active {
  box-shadow: 0 6px 12px rgba(0,0,0,0.16), 0 6px 12px rgba(0,0,0,0.23);
}

#nav-close-btn {
  width: 15vw;
  height: 15vw;
  max-width: 75px;
  max-height: 75px;
  z-index: 1;
  border: none;
  outline: none;
  transition-duration: 0.3s;
}

.hidden {
  display: none !important;
}