The mobile device lab at Facebook

Insightful post by the folks at Facebook on how they transitioned from testing their apps on a single device to a mobile device lab (holding 1000+ devices) at their Prineville data center. Having tried out several things, they eventually built their own custom racks which not only hold the devices, but also function as an …

Responsive Typography

Mike Riethmuller: It is possible to have precise control over responsive typography. Using calc() and viewport units you can create fluid type that scales perfectly between specific pixel values, within a specific viewport range. The formula used is this one: @media (min-width: #{$min_width}px) and (max-width: #{$max_width}px) { font-size: calc(#{$min_font}px + (#{$max_font} – #{$min_font}) * ( …