chromium/third_party/blink/web_tests/external/wpt/css/css-transforms/transform-singular-001.html

<!DOCTYPE html>
<html>
  <head>
    <title>CSS Test (Transforms): matrix(1, 1, 1, 1, 0, 0)</title>
    <link rel="author" title="Keith Schwarz" href="mailto:[email protected]">
    <link rel="author" title="Aryeh Gregor" href="mailto:[email protected]">
    <link rel="help" href="http://www.w3.org/TR/css-transforms-1/#transform-function-lists">
    <meta name="assert" content='"If a transform function causes the current
    transformation matrix (CTM) of an object to be non-invertible, the object
    and its content do not get displayed."  The matrix (1, 1, 1, 1) has
    determinant 1*1 - 1*1 = 0 and therefore is not invertible, so nothing
    should display.'>
    <link rel="match" href="transform-singular-ref.html">
    <style>
      div {
        width: 100px;
        height: 100px;
        background: red;
        transform: matrix(1, 1, 1, 1, 0, 0);
      }
    </style>
  </head>
  <body>
    <div>
      This shouldn't be visible.
    </div>
  </body>
</html>