deletions | additions       diff --git a/iframe.html b/iframe.html  index f49bd33..11d0e2c 100644  --- a/iframe.html  +++ b/iframe.html 
...
id="d3po" src="http://d3po.org/gist/8200058"</span>&nbsp;<span class='diff-add'>id="d3" src="http://bl.ocks.org/mbostock/4062006"</span>&nbsp; width="800" height="600" seamless="seamless" scrolling="no">