+iframe: index-iframe-demo
+index-iframe-demo:
+ ( cat url.demos | perl -ne 'chomp; print qq{<h2>$$_</h2><iframe width="900px" height="600px" src="$$_"></iframe>\n}' ) > iframe-demos.html
+
+tidy:
+ for i in iframe-demos.html index-*.html; do \
+ tidy -i -m $$i >/dev/null 2>&1; \
+ perl -i -npe 's,(</head>),<link type="text/css" rel="stylesheet" href="screenshots.css" />\n$$1,' $$i; \
+ done
+