Show HN: ThisCouldBeMobile.com – make other people's sites responsive

As a front-end developer, when I see a website that doesn't look right on my phone, I think about how I would fix it. If it's something I'd use, such as a restaurant menu, I send their team a stylesheet which could fix it, but it's a really awkward e-mail ("hey, you should add this file to your website for me!") So I made a simple website that demos what their site will look like with this CSS file.

http://ThisCouldBeMobile.com/and/awesome/1

On desktop: side-by-side comparison of mobile-sized iframes, link to syntax-highlighted CSS file

On mobile: fixed toolbar with two views (original and edited)

Make your own http://ThisCouldBeMobile.com/