CSS sprites provide the ability to pack multiple small images into a single file, which is then used as a background on multiple HTML elements. By simply defining the dimensions of the container and shifting the background position around, you’re able to achieve image-based styling globally with just one HTTP request. For larger sites, particularly e-commerce, this technique can reduce those requests by the dozens.
As the number of HTML5 web apps has grown in the last couple of years, so too has the number of people with disabilities that impair their use of the Internet. In fact, as many as 314 million people are visually impaired worldwide, and the number of Americans with visual impairment is expected to double by 2030.
The folks behind the popular Bootstrap framework recently announced the release of Bootstrap 3. Since its original release two years ago, Bootstrap has grown into an indispensable tool for scores of developers, and while it’s a tool for rapid prototyping, it’s also on the front end of thousands of production websites.
Things are changing rapidly for front-end developers. It seems that every day someone is releasing a brand new framework, bootstrap, boilerplate or some other convenience meant to get our projects up and running as quickly as possible. And with Responsive Web Design (RWD) being the hot topic that it is, even more are being released to cater to responsive’s specific needs.