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+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>1026-element-deep display: block</title>
+<script>
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/publicdomain/zero/1.0/
+
+function count() {
+ var depth = 0;
+ var deepest = 0;
+ var current = document;
+ var next = null;
+ outer: for (;;) {
+ if ((next = current.firstChild)) {
+ depth++;
+ if (depth > deepest) {
+ deepest = depth;
+ }
+ current = next;
+ continue;
+ }
+ for (;;) {
+ if ((next = current.nextSibling)) {
+ current = next;
+ break;
+ }
+ current = current.parentNode;
+ depth--;
+ if (current == document) {
+ break outer;
+ }
+ }
+ }
+
+ var h1 = document.getElementsByTagName("h1")[0];
+ var p = document.createElement("p");
+ var t = document.createTextNode("Actual depth (including text leaves): " + deepest);
+ p.appendChild(t);
+ h1.parentNode.insertBefore(p, h1.nextSibling);
+}
+
+function deep() {
+ var t = document.createTextNode("PASS");
+ var div = document.createElement("div");
+ div.appendChild(t);
+ for (var i = 0; i < 1023; i++) {
+ var another = document.createElement("div");
+ another.appendChild(div);
+ div = another;
+ }
+ document.body.appendChild(div);
+ count();
+}
+
+window.addEventListener('DOMContentLoaded', deep, false);
+</script>
+</head>
+<body>
+<h1>1026-element-deep display: block</h1>
+</body>
+</html>