فیلم آموزش کامل و عملی html5 و css3

This video consists of over 18 hours of instruction. The video assumes that you know basic JavaScript. Advanced techniques are taught in the video. You start by learning the basics of HTML5, then cover more sophisticated techniques such as creating tables, creating forms for collecting user input and using new features in HTML5, including page-structure elements that enable you to give meaning to the parts of a page (e.g., headers, navigation areas, footers, sections, figures, figure captions and more). Then you move on to the canvas element, which provides a JavaScript application programming interface (API) with methods for drawing two-dimensional bitmapped graphics and animations, manipulating fonts and images, and inserting images and videos. Cascading Style Sheets (CSS) are used to specify the presentation, or styling, of elements on a web page (e.g., fonts, spacing, sizes, colors, positioning). CSS was designed to style portable web pages independently of their content and structure. By separating page styling from page content and structure, you can easily change the look and feel of the pages on an entire website, or a portion of a website, simply by swapping out one style sheet for another. CSS3 is the current version of CSS under development. You learn CSS basics, then you go on to the key new features in CSS3, including text and box shadows, transitions, transformations, animations, multicolumn layouts and more. Finally, you learn about two new important HTML5 technologies: Web Workers and WebSockets. When a browser executes a long-running script, the browser typically becomes unresponsive for a period of time and sometimes displays an alert indicating that the script is busy or might have stopped working. This leads to a poor user experience. Web Workers enable portions of tasks to be off-loaded to background threads, allowing a web app’s GUI to remain responsive at all times. WebSockets enable clients to send data to and receive data from servers simultaneously using a persistent connection between the client and the server. In a web app with frequently updated data, the client typically polls the server repeatedly to get more data. With an open WebSocket connection, however, the server can push data to the client without the client specifically making additional requests, resulting in a more responsive app.