5 <style type=
"text/css" media=
"screen">
7 border:
10px solid black;
11 -webkit-box-shadow:
0 0 20px black;
18 background-color: blue;
19 transform: translateZ(
0);
29 <!-- The nested iframe inside invisible iframe should not set itself as the root layer. -->
30 <div style=
"display: none;">
31 <iframe src=
"resources/intermediate-frame.html"></iframe>