10 places where anyone can learn to code. Teens, tweens and kids are often referred to as “digital natives.” Having grown up with the Internet, smartphones and tablets, they’re often extraordinarily adept at interacting with digital technology. But Mitch Resnick, who spoke at TEDxBeaconStreet, is skeptical of this descriptor. Sure, young people can text and chat and play games, he says, “but that doesn’t really make you fluent.” Mitch Resnick: Let's teach kids to code Fluency, Resnick proposes in this TED Talk, comes not through interacting with new technologies, but through creating them. The former is like reading, while the latter is like writing. The point isn’t to create a generation of programmers, Resnick argues. In his talk, Resnick describes Scratch, the programming software that he and a research group at MIT Media Lab developed to allow people to easily create and share their own interactive games and animations.
While we’re at it: bonus! jQuery UI. jQuery Learning Center. Color Hex Color Codes. jQuery UI. API Documentation. Add elements to the set of matched elements. Add the previous set of elements on the stack to the current set, optionally filtered by a selector. Adds the specified class(es) to each of the set of matched elements. Insert content, specified by the parameter, after each element in the set of matched elements. Register a handler to be called when Ajax requests complete. This is an AjaxEvent. Register a handler to be called when Ajax requests complete with an error. This is an Ajax Event. Attach a function to be executed before an Ajax request is sent. Register a handler to be called when the first Ajax request begins. Register a handler to be called when all Ajax requests have completed.
Attach a function to be executed whenever an Ajax request completes successfully. Add the previous set of elements on the stack to the current set. Perform a custom animation of a set of CSS properties. Select all elements that are in the progress of an animation at the time the selector is run. .mouseleave. Description: Bind an event handler to be fired when the mouse leaves an element, or trigger that handler on an element. This method is a shortcut for .on('mouseleave', handler) in the first two variations, and .trigger('mouseleave') in the third.
The mouseleave JavaScript event is proprietary to Internet Explorer. Because of the event's general utility, jQuery simulates this event so that it can be used regardless of browser. This event is sent to an element when the mouse pointer leaves the element. Any HTML element can receive this event. For example, consider the HTML: The event handler can be bound to any element: Now when the mouse pointer moves out of the Outer <div>, the message is appended to <div id="log">.
After this code executes, clicks on Trigger the handler will also append the message. The mouseleave event differs from mouseout in the way it handles event bubbling. Demo: CSS Color Module Level 3. Abstract CSS (Cascading Style Sheets) is a language for describing the rendering of HTML and XML documents on screen, on paper, in speech, etc. It uses color-related properties and values to color the text, backgrounds, borders, and other parts of elements in a document.
This specification describes color values and properties for foreground color and group opacity. These include properties and values from CSS level 2 and new values. Status of this document This section describes the status of this document at the time of its publication. The (archived) public mailing list www-style@w3.org (see instructions) is preferred for discussion of this specification. This document was produced by the CSS Working Group (part of the Style Activity). A separate implementation report contains a test suite and shows that each test in the test suite was passed by at least two independent implementations. A complete list of changes to this document is available. Table of Contents 1. 2. 3. 3.1. Example(s): Fonts.
15.1 Introduction Setting font properties will be among the most common uses of style sheets. Unfortunately, there exists no well-defined and universally accepted taxonomy for classifying fonts, and terms that apply to one font family may not be appropriate for others. E.g., 'italic' is commonly used to label slanted text, but slanted text may also be labeled as being Oblique, Slanted, Incline, Cursive or Kursiv. Therefore it is not a simple problem to map typical font selection properties to a specific font. 15.2 Font matching algorithm Because there is no accepted, universal taxonomy of font properties, matching of properties to font faces must be done carefully.
The User Agent makes (or accesses) a database of relevant CSS 2.1 properties of all the fonts of which the UA is aware. (The above algorithm can be optimized to avoid having to revisit the CSS 2.1 properties for each character.) The per-property matching rules from (2) above are as follows: 'font-style' is tried first. Serif icon.