HTML / XHTML Elements and DTD
Elements are the core of an HTML document. Here is a complete listing of elements from the HTML/XHTML modern specifications. Some of the elements listed below have been deprecated and …
HTML Meta Element
Metadata is simply, information about data. In HTML documents, the <meta> element provides information to browsers about the HTML document. Metadata information will not be displayed on the page but …
HTML Html Element
Within an HTML page, there is a very important element called html. The <html> tag instructs the browser that this is an HTML document. The <html> element is also known …
HTML5 Canvas: Circles and Arcs
To create circles (arcs) onto the HTML5 Canvas, we can use the arc() method. Arcs are defined by a center point, radius, starting angle, ending angle, and the arc drawing …
HTML5 Semantic Markup and Page Layout
HTML5 introduces a whole new set of semantic elements. Semantic markup is HTML that introduces meaning rather than presentation. When semantic elements are used on a page, the browser can …
HTML5 Canvas Fill Styles
When drawing onto the HTML5 Canvas, it is fairly common to fill the objects that are rendered with color or patterns. When filling the canvas lines or shapes with color, …
HTML5 Canvas: Text
To draw text using HTML5 Canvas, we have access to a few properties and methods such as the font property and the fillText() method of the canvas context. The font …
HTML5 Application Cache
HTML5 introduces a new method for enabling a web application to be available without your users being online. Having no connection to the internet usually means no access to your …
HTML5 Web Workers
One of the biggest challenges that still exist for web developers today is how to create feature-rich web applications that are very responsive to users. One of the main issues …
HTTP Status Codes
When a client (browser) requests a page from a web server, various status codes are included in the messages that are sent back and forth. These messages can be used …
CSS Grouping and Nesting Selectors
As you develop your CSS structure, you may realize that in many cases, you need to apply the same styles to different elements in your HTML pages. Also, it is …
CSS3 Transitions
CSS3 Transitions allow web developers to introduce effects by allowing property changes in CSS values. These changes are generally defined to occur when certain events occur, such as :hover or …