A very handy tool for figuring out breakpoints for responsive images.
Upload an image in its largest size, play around with the settings, and then generate the breakpoints, the markup, and the resized images for each breakpoint.
A nifty tool from Brad to help calculate and allocate performance budgets. Click around and edit the numbers.
This is shaping up to be a great affordable one-day event in London on March 4th. The format will be similar to Responsive Day Out.
I suggest you grab a ticket.
Remember when I mentioned that you can get free certificates from Amazon now? Well, Oliver has written an in-depth step-by-step description of how he got his static site all set up with HTTPS.
More of this please! Share your experiences with moving to TLS—the more, the better.
A complete list of HTML elements, past and present. They’re all hyperlinked to the relevant specs.
Earth as seen on one day in 2015 from Himawari-8. Beautiful.