You can view a demo of the effect above on JSBIN. Chrome can correctly display video that is encoded in both the "ogg" and "mp4" formats. This means that, at least for now, you should create two versions of the audio. The element has been surprisingly controversial. According to W3C's HTML documentation: "A section is a thematic grouping of content, typically with a heading.". Get practical advice to start your career in programming! A string wrapped within this tag should be relevant to the current actions of the user. main marks the meaty content within your page, i.e. If you have important information to share, please, https://blog.twitter.com/2012/implementing-pushstate-for-twittercom. Examples might be simplified to improve reading and learning. Test Yourself With Exercises. According to the W3C: "A semantic Web allows data to be shared and reused across applications,
Kind of, yes. Upon hitting the back button we’ll find that we don’t return to the URL of this article but instead we’ll go back to whatever page we were on before. However, it's used for current, and older browsers that require a specified doctype. The tag defines a caption for a