<select>
  <option value="animejs">AnimeJS</option>
  <option value="gsap">GSAP</option>
</select>
<button>Run animation</button>
<p>Status: <span class="status">Inactive</span></p>

<div class="container">
  <div class="card">
    <img src="https://imgur.com/7Q2fZcQ.png" class="back" />
  <img src="https://imgur.com/G4BYZF1.png" class="front" />
  </div>
</div>

body {
  margin: 16px;
  background-color: #27a13d;
}

select {
  float: left;
  padding: 0 0 0 8px;
  font-size: 12px;
  font-weight: bold;
  font-family: 'Verdana';
  height: 24px;
  background-color: white;
  color: #27a13d;
  border: none;
  border-radius: 6px;
  background-color: white;
}

button {
  float: left;
  display: inline-block;
  outline: 0;
  border: none;
  cursor: pointer;
  border-radius: 6px;
  font-size: 12px;
  font-weight: bold;
  font-family: 'Verdana';
  height: 24px;
  background-color: white;
  color: #27a13d;
  padding: 0 12px;
  margin-left: 8px;
}

p {
  margin: 0;
  display: inline-block;
  color: white;
  font-size: 14px;
  font-family: 'Verdana';
  margin-left: 8px;
  line-height: 24px;
}

.container {
  position: relative;
  margin-top: 16px;
}

.card {
  position: absolute;
  width: 106px;
  height: 148px;
  perspective: 400px;
  transform-style: preserve-3d;
}

.card img {
  position: absolute;
  width: 100%;
  height: 100%;
}

.card .front {
  transform: rotateY(-90deg);
}

.card .back {
  transform: rotateY(0deg);
}

$( "button" ).click(function() {
  var option = $('select option:selected').val()
  
  if (option == "animejs") {
    animateUsingAnimeJS()
  } else if (option == "gsap") {
    animateUsingGSAP()
  }
});

function animateUsingAnimeJS() {
  $(".card img").css("transform", ""); // Reset animation
  
  var timeline = anime.timeline({
    begin: function() {
      $(".status").text("Animating")
    },
    complete: function() {
      $(".status").text("Inactive")
    }
  });
  timeline.add({
    targets: '.card',
    left: [0, 300],
    easing: 'easeInOutSine',
    duration: 500
  }).add({
    targets: '.card .back',
    rotateY: [0, 90],
    easing: 'easeInSine',
    duration: 200
  }).add({
    targets: '.card .front',
    rotateY: [-90, 0],
    easing: 'easeOutSine',
    duration: 200
  })
}

function animateUsingGSAP() {
  $(".card img").css("transform", ""); // Reset animation
  
  var timeline = gsap.timeline({
    onStart: function() {
      $(".status").text("Animating")
    },
    onComplete: function() {
      $(".status").text("Inactive")
    }
  });
  timeline.fromTo(".card", { 
    left: 0
  }, { 
    duration: 0.5, 
    left: 300
  }).fromTo(".card .back", { 
    rotationY: 0
  }, {
    rotationY: 90,
    ease: "power1.easeIn",
    duration: 0.2
  }).fromTo(".card .front", { 
    rotationY: -90
  }, {
    rotationY: 0,
    ease: "power1.easeOut",
    duration: 0.2
  })
}