[alvarob]

You're right, I was looking at the css but it seems that comes from the html.

Any idea on how to parse that from the source?
The website looks like this:

<img height="0" width="414" src="">

And I would like to remove both height and width from that tag, whatever size they specify (it can vary), leaving only

<img src="">

I guess I coud try with soup, something like

def postprocess_html(self, soup, first_fetch):
while len(soup.find_all('width')) > 0:
    soup.width.extract()
while len(soup.find_all('height')) > 0:
    soup.height.extract()
return soup