>> <div py:replace="item[:]"/> >I *think* this replaces all of the elements in <head></head>.
"item" is the matching node from the extended template. So <div
py:replace="item[:]"/> is replaced by the children nodes of <head> from
content.kid
master.kid :
<head py:match="item.tag=='{http://www.w3.org/1999/xhtml}head'">
<style>
blabla ...
</style>
<div py:replace="item[:]"/>
</head>
+ content.kid
<head>
<title>Foo</title>
</head>
=>
<head>
<style>
blabla ...
</style>
<title>Foo</title>
</head>
