Cascading Style Sheets (CSS) is a stylesheet language used to describe the presentation of a document written in a markup language. Its most common application is to style web pages written in HTML
JavaScript is a scripting language most often used for client-side web development.
The description attribute provides a concise explanation of the page content.
This site is using code from the HTML5 Boilerplate project.
The Open Graph protocol enables any web page to become a rich object in a social graph, a open protocol supported by Facebook
The OpenSearch description document format can be used to describe a search engine so that it can be used by search client applications.
[url] uses conditional comments that are supported by Microsoft Internet Explorer. They allow web developers to show or hide HTML code based on the version of the viewer's browser.
Twitter cards make it possible for you to attach media experiences to Tweets that link to your content.
The DOCTYPE is a required preamble for HTML5 websites.
The @font-face rule allows for linking to fonts that are automatically activated when needed.
This page contains tags that are specific to an HTML 5 implementation.
A way to make Web content and Web applications more accessible to people with disabilities. It especially helps with dynamic content and advanced user interface controls developed with Ajax, HTML, JavaScript, and related technologies.
This page contains HTML5 style media tags. HTML5 is the proposed next standard for HTML 4.01, XHTML 1.0 and DOM Level 2 HTML.
The page shows content with an iframe; an embedded frame that loads another webpage.