chromium/third_party/blink/web_tests/fast/shapes/shape-outside-floats/shape-outside-one-pixel.html

<!DOCTYPE html>
<html>
<head>
<style>
    #content {
        font: 50px/1 Ahem, sans-serif;
        -webkit-font-smoothing: antialiased;
        color: green;
    }
    #image-shape {
        float: left;
        shape-outside: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='2px' height='2px'><rect width='1' height='1' fill='blue'/></svg>");
        shape-margin: 500px;
        margin-right: 50px;
        margin-bottom: 50px;
        width: 100px; 
        height: 50px;
    }
</style>
</head>
<body>
  <p>The shape-outside in this test is a 2x2 image with only the upper left pixel set. The shape
  element's margin-box is and the the shape-margin is big enough (is greater than 150 * sqrt(2))
  so that the shape-margin boundary extends beyond the margin-box's bounds. The shape-outside boundary
  is clipped to the margin-box, so it's as if the shape-outside was equal to the margin-box.</p>
  <div id="content">
      <div id="image-shape"></div>
      X<br>X
  </div>
</body>
</html>