css/css-page/margin-boxes/dimensions-002-print-ref.html

<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<style>
  @page {
    margin: 0;
    size: 500px 400px;
  }
  body {
    margin: 0;
  }
</style>
<div style="display:flex; margin:0 100px; height:100px;">
  <div style="border:solid; width:20%; height:20%; align-self:flex-end;">20%</div>
  <div style="border:solid; flex:1;">auto</div>
</div>
<div style="display:flex; height:200px;">
  <div style="display:flex; flex-flow:column; width:100px;">
    <div style="width:70px; height:70px; border:solid; margin-left:auto;">70px</div>
    <div style="flex:1; border:solid;">auto</div>
  </div>
  <div style="flex:1;"></div>
  <div style="display:flex; flex-flow:column; width:100px;">
    <div style="flex:1; border:solid;">auto</div>
    <div style="width:70%; height:70%; border:solid;">70%</div>
  </div>
</div>
<div style="display:flex; margin:0 100px; height:100px;">
  <div style="border:solid; flex:1;">auto</div>
  <div style="border:solid; width:70px; height:70px;">70px</div>
</div>