<!DOCTYPE html> <title>CSSOM View - 6.1 - getBoundingClientRect tests</title> <link rel="help" href="http://www.w3.org/TR/cssom-view/#dom-element-getboundingclientrect"> <link rel=match href="cssom-getBoundingClientRect-vertical-rl-ref.html"> <meta name="flags" content="dom"> <body style="writing-mode: vertical-rl; overflow: hidden"> <div id="target" style="position: absolute; top: 50px; left: 50px; width: 200px; height: 200px; background: red"></div> <div id="overlay" style="position: absolute; background: green"></div> <script> var r = document.getElementById('target').getBoundingClientRect(); var overlay = document.getElementById('overlay'); overlay.style.top = r.top + 'px'; overlay.style.left = r.left + 'px'; overlay.style.width = r.width + 'px'; overlay.style.height = r.height + 'px'; </script> </body>