Blitz - WPT: offset-path-ray-contain-003.html

wpt / css / motion / offset-path-ray-contain-003.html

/css/motion/offset-path-ray-contain-003.html

<!DOCTYPE html>
<html>
  <head>
    <title>CSS Motion Path: ray paths with contain</title>
    <link rel="help" href="https://drafts.fxtf.org/motion-1/#offset-path-property">
    <link rel="match" href="offset-path-ray-contain-003-ref.html">
    <meta name="assert" content="This tests that the element should be contained in ray() path circle.">
    <style>
      #container {
        width: 300px;
        height: 300px;
      }
      #target {
        position: relative;
        left: 150px;
        top: 150px;
        width: 100px;
        height: 100px;
        background-color: lime;
        offset-path: ray(45deg closest-side contain);
        offset-rotate: 0deg;
        offset-distance: 100%;
        offset-position: auto;
      }
    </style>
  </head>
  <body>
    <div id="container">
      <div id="target"></div>
    </div>
  </body>
</html>

/css/motion/offset-path-ray-contain-003-ref.html

<!DOCTYPE html>
<html>
  <head>
    <title>CSS Motion Path: ray paths with contain</title>
    <style>
      #container {
        width: 300px;
        height: 300px;
      }
      #target {
        position: relative;
        left: 100px;
        top: 100px;
        width: 100px;
        height: 100px;
        background-color: lime;
        /* ray length is sqrt(150^2 + 0^2); contain does -max(100, 100) / 2; */
        /* the result length is 100. sin(45deg) * length = 70.71; */
        transform: rotate(-45deg) translate(100px) rotate(45deg);
      }
    </style>
  </head>
  <body>
    <div id="container">
      <div id="target"></div>
    </div>
  </body>
</html>