navbar.css

#menu-area {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  display: flex;
  align-items: flex-end;
  gap: 0.5em;
}

nav {
  perspective: 400px;
  perspective-origin: bottom;
}

#menu-area ul {
  /* Style */
  list-style-type: none;
  color: white;
  background: var(--fog);
  border-radius: 10px;
}

nav > ul {
  /* Sizing */
  width: 9rem;
  padding: 1rem 0 1rem 0;
  margin-bottom: 0.5rem;

  /* Display */
  visibility: hidden;
  opacity: 0;
  transform: rotateX(15deg) translateZ(-2rem) translateY(-1rem);

  /* Transition */
  transition-duration: 0.3s;
  transition-property: visibility transform opacity max-height;
  transition-delay: 0.3s 0s 0s 0s;
}

nav > ul.shown {
  transform: none;
  opacity: 1;
  visibility: visible;
}

nav > ul > li {
  font-size: 0.9rem;
  text-align: center;
  font-weight: 300;
}

nav > ul > li:not(:last-child) {
  margin-bottom: 0.8rem;
}

nav > button,
#menu-area > button {
  border-radius: 10px;
  background: var(--fog);
}

nav > button:hover,
#menu-area > button:hover {
  background: var(--marblue);
}

#menu-area > button {
  width: 3rem;
  height: 3rem;
}

#menu-area > button > i {
  margin-right: 0;
}

#menu-area {
  perspective: 400px;
  perspective-origin: bottom;
}

#menu-area > ul {
  /* Sizing */
  padding-left: 1em;
  padding-right: 1em;
  height: 3rem;

  /* Layout */
  display: flex;
  align-items: stretch;
  gap: 1rem;

  /* Display */
  visibility: hidden;
  opacity: 0;
  transform: rotateY(-15deg) translateZ(-2rem) translateX(-1rem);

  /* Transition */
  transition-duration: 0.3s;
  transition-property: visibility transform opacity max-height;
  transition-delay: 0.3s 0s 0s 0s;
}

#menu-area > ul a {
  display: block;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
}

#menu-area > ul img {
  height: 2rem;
  border-radius: 3px;
}

#menu-area > ul.shown {
  transform: none;
  opacity: 1;
  visibility: visible;
}