css/css-page/page-background-005-print-ref.html

<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<style>
  @page {
    size: 600px 300px;
    margin: 20px;
  }
  :root {
    print-color-adjust: exact;
  }
  body {
    margin: 0;
  }
  .text {
    /* Add some padding to leave some room for glyph overflow.
       The page area may clip overflow, although the ref doesn't. */
    padding: 0 5px;
    background: #ddd;
  }
  .pagecontainer {
    break-before: page;
  }
  .pageborder {
    box-sizing: border-box;
    height: 260px;
    border: 20px solid blue;
    padding: 20px;
  }
  .cat {
    position: absolute;
    z-index: -1;
    width: 100px;
    height: 100px;
    background-image: url(support/cat.png);
    background-repeat: no-repeat;
  }
</style>
<div class="pagecontainer">
  <div class="cat"></div>
  <div class="pageborder">
    <div style="height:100px;"></div>
    <div class="text">
      There should be a cat in the top left corner, flush with the border
      edge. The blue border should be painted on top of the cat.
    </div>
  </div>
</div>
<div class="pagecontainer">
  <div class="cat" style="margin-top:20px; margin-left:20px;"></div>
  <div class="pageborder">
    <div style="height:100px;"></div>
    <div class="text">
      There should be a cat in the top left corner, flush with the padding box,
      i.e. just inside the blue border.
    </div>
  </div>
</div>
<div class="pagecontainer">
  <div class="cat" style="margin-top:40px; margin-left:40px;"></div>
  <div class="pageborder">
    <div style="margin-left:105px; width:10px; height:100px; background:orange;"></div>
    <div class="text">
      There should be a cat in the top left corner, flush with the content box
      (left-aligned with this box, vertically aligned with the orange bar).
    </div>
  </div>
</div>