<div id="padding_no_size" style="padding: 10px;">
</div>

<div id="padding_container_match_child" style="padding: 10px;">
  <div style="width: 10px; height: 10px;"></div>
</div>

<div id="padding_flex_child" style="width: 100px; height: 100px; padding: 10px;">
  <div style="width: 10px; flex-grow:1"></div>
</div>

<div id="padding_stretch_child" style="width: 100px; height: 100px; padding: 10px;">
  <div style="height: 10px;"></div>
</div>

<div id="padding_center_child"
  style="width: 100px; height: 100px