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  1. Scroll snapping explained

    Have you ever tried to snap your page’s contents after scrolling? There are many JavaScript libraries out there providing this functionality. Here are a few examples: https://github.com/peachananr/purejs-onepage-scroll http://wtm.github.io/jquery.snapscroll/ http://guidobouman.github.io/jquery-panelsnap/ http://alvarotrigo.com/fullPage/ As this is a common use case related to page layout and behavior, the W3C Read more…

  2. Making and Breaking the Web With CSS Gradients

    What is CSS prefixing and why do I care? Straight from the source: “Browser vendors sometimes add prefixes to experimental or nonstandard CSS properties, so developers can experiment but changes in browser behavior don’t break the code during the standards process. Developers should wait to Read more…

  3. Drag Elements, Console History, and more – Firefox Developer Edition 39

    Quite a few big new features, improvements, and bug fixes made their way into Firefox Developer Edition 39. Update your Firefox Developer Edition, or Nightly builds to try them out! Inspector The Inspector now allows you to move elements around via drag and drop. Click Read more…

  4. Understanding the CSS box model for inline elements

    In a web page, every element is rendered as a rectangular box. The box model describes how the element’s content, padding, border, and margin determine the space occupied by the element and its relation to other elements in the page. Depending on the element’s display Read more…

  5. Ruby support in Firefox Developer Edition 38

    It was a long-time request from East Asian users, especially Japanese users, to have ruby support in the browser. Formerly, because of the lack of native ruby support in Firefox, users had to install add-ons like HTML Ruby to make ruby work. However, in Firefox Read more…

  6. Introducing @counter-style

    Introduction The characters that indicate items in a list are called counters — they can be bullets or numbers. They are defined using the list-style-type CSS property. CSS1 introduced a list of predefined styles to be used as counter markers. The initial list was then slightly extended Read more…

  7. Exploring object-fit

    On web documents, a common problem concerns the display of different sized images (or videos) in the same place. Perhaps you are writing a dynamic gallery app that accepts user submissions. You can’t guarantee that everyone will upload images of exactly the same aspect ratio, Read more…

  8. Pseudo elements, promise inspection, raw headers, and much more – Firefox Developer Edition 36

    Firefox 36 was just uplifted to the Developer Edition channel, so let’s take a look at the most important Developer Tools changes in this release. We will also cover some changes from Firefox 35 since it was released shortly before the initial Developer Edition announcement. Read more…

  9. WebIDE, Storage inspector, jQuery events, iframe switcher + more – Firefox Developer Tools Episode 34

    A new set of Firefox Developer Tools features has just been uplifted to the Aurora channel. These features are available right now in Aurora, and will be in the Firefox 34 release in November. This release brings new tools (storage inspector, WebIDE), an updated profiler, Read more…

  10. Single Div Drawings with CSS

    Why A Single Div? In May of 2013 I attended CSSConf and saw Lea Verou speak about the humble border-radius. It was an eye-opening talk and I realized there was much about CSS behavior I did not fully understand. This reminded me of my time Read more…