CSS Sprites: What They Are, Why They're Cool, and How To Use Them

By Chris Coyier On This article has been revised and re-written several times since its very first publication in 2007, to keep the information current. The most recent revision was done by Flip Stewart in January 2015. #What are CSS Sprites? Spoiler alert: they aren't fairies that write your stylesheets for you. To summarize: the term "sprites" comes from a technique in computer graphics, most often used in video games. CSS Sprites is pretty much the exact same theory: get the image once, and shift it around and only display parts of it. #Why use CSS Sprites? It may seem counterintuitive to cram smaller images into a larger image. Let's look at some numbers on an actual example: That adds up to a total of 14.38KB to load the three images. While the total image size (sometimes) goes up with sprites, several images are loaded with a single HTTP request. Thus, sprites are important for the same reasons that minifying and concatinating CSS and JavaScript are important. $ npm install sprity -g

30 Must See Web Generator for Lazy Webmasters Here’s a list of 70 hand-picked, easy to use, and free web generators that will save you tons of time and energy. I have grouped these tools into 10 categories: Color Palettes, Robots.txt, Website Screenshots, Favicons, Web Backgrounds, Webpage Elements (buttons, tabs, etc), Memes, Forms, Logos, and Dummy Texts. The best part about these tools is that they are completely free (some need you to signup though). If you are looking ways speed up your work and channel more time and energy to new content ideas and marketing strategies, I believe the list is a must-bookmark. According to my last check on WordPress.com stats, there were more than 42 million blogposts published in May 2014 – and that’s just WordPress.com alone. Who has the time to create everything from scratch these days? Category #1: Color Palettes Generator Functions/Details: To generate color palettes based on image input.Allow users to compare, review, and select color combination at ease. Palette Generator Pictaculous Kuler

Les Media Queries CSS3 La spécification CSS3 Media Queries définit les techniques pour l'application de feuilles de styles en fonction des périphériques de consultation utilisés pour du HTML. On nomme également cette pratique Responsive Web Design, pour dénoter qu'il s'agit d'adapter dynamiquement le design à l'aide de CSS. Ces bonnes pratiques permettent d'exploiter encore plus les avantages de la séparation du contenu et de la présentation : l'intérêt est de pouvoir satisfaire des contraintes de dimensions, de résolutions et d'autres critères variés pour améliorer l'apparence graphique et la lisibilité (voire l'utilisabilité) d'un site web. Les plateformes exotiques sont concernées en premier lieu : navigateurs mobiles et tablettes, écrans à faibles résolutions, impression, tv, synthèses vocales, plages braille, etc. Approche historique Avec CSS2 et HTML4, il était déjà possible de spécifier un média de destination pour l'application d'une ou plusieurs feuilles de style. <! screen Écrans handheld print Impression

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