diff --git a/1-js/3-code-quality/1-debugging-chrome/head.html b/1-js/3-code-quality/1-debugging-chrome/head.html
new file mode 100644
index 00000000..e990ced8
--- /dev/null
+++ b/1-js/3-code-quality/1-debugging-chrome/head.html
@@ -0,0 +1,8 @@
+<style>
+span.devtools {
+  display: inline-block;
+  background-image: url(/article/debugging-chrome/statusbarButtonGlyphs.svg);
+  height:16px;
+  width:16px;
+}
+</style>
\ No newline at end of file
diff --git a/1-js/4-data-structures/10-arguments-pseudoarray/head.html b/1-js/4-data-structures/10-arguments-pseudoarray/head.html
new file mode 100644
index 00000000..49d09dd5
--- /dev/null
+++ b/1-js/4-data-structures/10-arguments-pseudoarray/head.html
@@ -0,0 +1,14 @@
+<script>
+function copy() {
+  var dst = arguments[0];
+
+  for (var i = 1; i < arguments.length; i++) {
+    var arg = arguments[i];
+    for (var key in arg) {
+      dst[key] = arg[key];
+    }
+  }
+
+  return dst;
+}
+</script>
\ No newline at end of file