chromium/third_party/blink/web_tests/external/wpt/css/css-page/margin-boxes/alignment-001-print.html

<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/css-page-3/#margin-text-alignment">
<meta name="assert" content="Test default vertical and horizontal alignment for all 16 margin boxes">
<link rel="match" href="alignment-001-print-ref.html">
<style>
  @page {
    font-family:monospace;
    font-size: 0.7em;

    /* This results in a page border box size that's divisible by 3, so that the
       three boxes at a page edge get the exact same size. */
    size: 550px 400px;

    margin: 50px;
    color: blue;

    @top-left-corner { content: "A"; }
    @top-left { content: "B"; }
    @top-center { content: "C"; }
    @top-right { content: "D"; }
    @top-right-corner { content: "E"; }
    @right-top { content: "F"; }
    @right-middle { content: "G"; }
    @right-bottom { content: "H"; }
    @bottom-right-corner { content: "I"; }
    @bottom-right { content: "J"; }
    @bottom-center { content: "K"; }
    @bottom-left { content: "L"; }
    @bottom-left-corner { content: "M"; }
    @left-bottom { content: "N"; }
    @left-middle { content: "O"; }
    @left-top { content: "P"; }
  }
</style>
<div>
  Small blue letters from A to P should be seen in a clockwise manner, starting
  with A in the top left corner.
</div>