<div id="menu-btn-container">
  <div id="menu-btn">
    <input type="checkbox" id="menu-checkbox" />
    <label for="menu-checkbox" id="menu-label">
      <div id="menu-bar"></div>
    </label>
  </div>
</div>

* {
  -webkit-tap-highlight-color: transparent;
}

*:focus {
  outline: none;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background-color: #0e3577;
}

#menu-btn-container {
  position: absolute;
  top: 50%;
  right: 0;
  left: 0;
  width: 39px;
  margin: 0 auto;
  transform: translateY(-50%) scale(2);
}

#menu-btn {
  width: 39px;
  overflow: hidden;
}

#menu-checkbox {
  display: none;
}

#menu-label {
  position: relative;
  display: block;
  height: 29px;
  cursor: pointer;
}

#menu-label:before,
#menu-label:after,
#menu-bar {
  position: absolute;
  left: 0;
  width: 100%;
  height: 5px;
  background-color: #fff;
}

#menu-label:before,
#menu-label:after {
  content: "";
  transition: 0.4s cubic-bezier(0.68, -0.55, 0.27, 1.55) left;
}

#menu-label:before {
  top: 0;
}

#menu-label:after {
  top: 12px;
}

#menu-bar {
  top: 24px;
}

#menu-bar:before {
  content: "MENU";
  position: absolute;
  top: 5px;
  right: 0;
  left: 0;
  color: #fff;
  font-size: 12px;
  font-weight: bold;
  font-family: "Montserrat", Arial, Helvetica, sans-serif;
  text-align: center;
}

#menu-checkbox:checked + #menu-label:before {
  left: -39px;
}

#menu-checkbox:checked + #menu-label:after {
  left: 39px;
}

#menu-checkbox:checked + #menu-label #menu-bar:before {
  animation: moveUpThenDown 0.8s ease 0.2s forwards,
    shakeWhileMovingUp 0.8s ease 0.2s forwards,
    shakeWhileMovingDown 0.2s ease 0.8s forwards;
}

@keyframes moveUpThenDown {
  0% {
    top: 0;
  }
  50% {
    top: -27px;
  }
  100% {
    top: -14px;
  }
}

@keyframes shakeWhileMovingUp {
  0% {
    transform: rotateZ(0);
  }
  25% {
    transform: rotateZ(-10deg);
  }
  50% {
    transform: rotateZ(0deg);
  }
  75% {
    transform: rotateZ(10deg);
  }
  100% {
    transform: rotateZ(0);
  }
}

@keyframes shakeWhileMovingDown {
  0% {
    transform: rotateZ(0);
  }
  80% {
    transform: rotateZ(3deg);
  }
  90% {
    transform: rotateZ(-3deg);
  }
  100% {
    transform: rotateZ(0);
  }
}