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By David Walsh on November 2, 2019

Recent Features

By David WalshDecember 6, 2012
Vibration API
Many of the new APIs provided to us by browser vendors are more targeted toward the mobile user than the desktop user. One of those simple APIs the Vibration API. The Vibration API allows developers to direct the device, using JavaScript, to vibrate in...
By David WalshApril 10, 2012
CSS Animations Between Media Queries
CSS animations are right up there with sliced bread. CSS animations are efficient because they can be hardware accelerated, they require no JavaScript overhead, and they are composed of very little CSS code. Quite often we add CSS transforms to elements via CSS during...

By David WalshJanuary 2, 2013
afterscriptexecute Event
Fellow Mozillian Daniel Buchner, curator of the X-Tag project and clever developer who showed us how to detect dom node insertions using CSS animations, recently showed me a new JavaScript feature I'd never heard of: the SCRIPT element's afterscriptexecute event.
By David WalshMay 8, 2018
Vertically Centering with Flexbox
Vertically centering sibling child contents is a task we've long needed on the web but has always seemed way more difficult than it should be. We initially used tables to accomplish the task, then moved on to CSS and JavaScript tricks because table layout was horribly...