Taking flip card example from here:
<https://www.w3schools.com/howto/howto_css_flip_card.asp>

```
<div class="flip-card">
  <div class="flip-card-inner">
    <div class="flip-card-front">
      <img src="img_avatar.png" alt="Avatar" style="width:300px;height:300px;">
    </div>
    <div class="flip-card-back">
      <h1>John Doe</h1>
      <p>Architect & Engineer</p>
      <p>We love that guy</p>
    </div>
  </div>
</div>

```

css:

```
/* The flip card container - set the width and height to whatever you want. We have added the border property to demonstrate that the flip itself goes out of the box on hover (remove perspective if you don't want the 3D effect */
.flip-card {
  background-color: transparent;
  width: 300px;
  height: 200px;
  border: 1px solid #f1f1f1;
  perspective: 1000px; /* Remove this if you don't want the 3D effect */
}

/* This container is needed to position the front and back side */
.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.8s;
  transform-style: preserve-3d;
}

/* Do an horizontal flip when you move the mouse over the flip box container */
.flip-card:hover .flip-card-inner {
  transform: rotateY(180deg);
}

/* Position the front and back side */
.flip-card-front, .flip-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
}

/* Style the front side (fallback if image is missing) */
.flip-card-front {
  background-color: #bbb;
  color: black;
}

/* Style the back side */
.flip-card-back {
  background-color: dodgerblue;
  color: white;
  transform: rotateY(180deg);
}

```

If I make a simple change to one of the children elements of the back card to position it relative, I do not see any back card elements until the transform is complete.

```
<div class="flip-card-back">
  <h1 style="position: relative;">John Doe</h1>
  <p>Architect & Engineer</p>
  <p>We love that guy</p>
</div>

```

[![enter image description here](https://i.stack.imgur.com/CrBnk.gif)](https://i.stack.imgur.com/CrBnk.gif)

In my scenario I am creating a flip card with 3rd party child elements and I cannot modify those elements relative position. Any ideas?