<!DOCTYPE html>
<!--
All divs here should shrinkwrap to fit their content, except for fill-available
-->
<style>
    body * {
      border: 2px solid red;
      padding: 5px;
      clear: both;
    }

    .container {
      height: 400px;
      border-color: blue;

      display: inline-block;
      width: 100px;
    }

    .position-container {
      border-color: green;
      position: relative;
      height: 100px;
    }

    .position-container > * {
      position: absolute;
    }

    .f-a-container {
      height: 100%;
      box-sizing: border-box;
    }

    .fill-available {
      height: 386px;
      box-sizing: border-box;
    }
</style>
<div class="container">
  <div class="position-container">
    <div>
      height: min-content<br>on this box.
    </div>
  </div>
  <div class="position-container">
    <div>
      height: max-content<br>on this box.
    </div>
  </div>
  <div class="position-container">
    <div>
      height: fit-content<br>on this box.
    </div>
  </div>
</div>

<div class="container">
  <div class="position-container f-a-container">
    <div class="fill-available">
      height: fill-available<br> on this box.
    </div>
  </div>
</div>

<div class="container">
  <div class="position-container">
    <div>
      min-height: min-content<br>on this box.
    </div>

  </div>
  <div class="position-container">
    <div>
      min-height: max-content<br>on this box.
    </div>

  </div>
  <div class="position-container">
    <div>
      min-height: fit-content<br>on this box.
    </div>
  </div>
</div>

<div class="container">
  <div class="position-container f-a-container">
    <div class="fill-available">
      min-height: fill-available<br> on this box.
    </div>
  </div>
</div>

<div class="container">
  <div class="position-container">
    <div>
      max-height: min-content<br>on this box.
    </div>

  </div>
  <div class="position-container">
    <div>
      max-height: max-content<br>on this box.
    </div>

  </div>
  <div class="position-container">
    <div>
      max-height: fit-content<br>on this box.
    </div>
  </div>
</div>

<div class="container">
  <div class="position-container f-a-container">
    <div class="fill-available">
      max-height: fill-available<br> on this box.
    </div>
  </div>
</div>
