<div class="navigation">
  <div class="menuToggle"></div>
  <div class="menu">
    <ul>
      <li style="--i:0.1s;"><a href="https://mankeung.github.io/docs/mk-data"><ion-icon name="camera-outline"></ion-icon></a></li>
      <li style="--i:0.2s;"><a href="https://mankeung.github.io/docs/mk-data"><ion-icon name="settings-outline"></ion-icon></a></li>
      <li style="--i:0.3s;"><a href="https://mankeung.github.io/docs/mk-data"><ion-icon name="trash-outline"></ion-icon></a></li>
    </ul>
  </div>
</div>
<script type="module" src="https://unpkg.com/ionicons@5.5.2/dist/ionicons/ionicons.esm.js"></script>
<script nomodule src="https://unpkg.com/ionicons@5.5.2/dist/ionicons/ionicons.js"></script>

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: linear-gradient(45deg,#ff216d,#2196f3);
}

.navigation {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.menuToggle {
  position: relative;
  width: 70px;
  height: 70px;
  background: #fff;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 15px 25px rgba(0,0,0,0.15);
}

.menuToggle::before {
  content: '+';
  position: absolute;
  font-size: 3em;
  font-weight: 200;
  color: #e91e63;
  transition: 1.5s;
}

.menuToggle.active::before {
  transform: rotate(225deg);
} 

.menu {
  position: absolute;
  width: 30px;
  height: 30px;
  background: #fff;
  border-radius: 70px;
  z-index: -1;
  transition: transform 0.5s, width 0.5s, height 0.5s;
  transition-delay: 1s, 0.5s, 0.5s;
  transition-timing-function: cubic-bezier(0.075, 0.82, 0.165, 1);
}

.menuToggle.active ~ .menu {
  transform: translateY(-100px);
  height: 70px;
  width: 240px;
  z-index: 1;
  transition-delay: 0s, 0.5s, 0.5s;
  box-shadow: 0 15px 25px rgba(0,0,0,0.1);
}

.menuToggle ~ .menu::before {
  content: '';
  position: absolute;
  left: calc(50% - 8px);
  bottom: 4px;
  width: 16px;
  height: 16px;
  transform: rotate(45deg);
  background: #fff;
  border-radius: 2px;
  transition: 0.5s;
}

.menuToggle.active ~ .menu::before {
  transition-delay: 0.5s;
  bottom: -6px;
}

.menu ul {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 80px;
  gap: 40px;
  z-index: 10;
}

.menu ul li {
  list-style: none;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-30px);
  transition: 0.25s;
  transition-delay: 0s;
  transition-delay: calc(0s + var(--i));
}

.menuToggle.active ~ .menu ul li {
  visibility: visible;
  opacity: 1;
  transform: translateY(0px);
  transition-delay: calc(0.75s + var(--i));
}

.menu ul li a {
  display: block;
  font-size: 2em;
  text-decoration: none;
  color: #555;
}

.menu ul li:hover a {
  color: #e91e63;
}

let menuToggle = document.querySelector('.menuToggle');
menuToggle.onclick = function(){
  menuToggle.classList.toggle('active')
}