Hello everybody, welcome to the first weekof the HTML5 course...This week, we will first tell some history about HTMLThen, in a second time we will look atTwo important features introduced by HTML5The first one is a set of new elements and attributesfor better structuring HTML documents...Elements such as <header>, <footer>,<section>, <article>, <nav> and <aside> will be explained,as well as other elements and attributes that add semanticsto your documents, such as <time> or <mark> .These provide a better structure description than thefamiliar <div> or <span> elements. At the same time,they will help you make HTML5 documentsbetter suited for people with disabilities.They will make documents more accessibleThen we will look at Microdata, a new wayof introducing structured data inside the document.If you are into search engine optimization,you should think about adding Microdata to your documents,they will be taken into account by search enginessuch as Google, Yahoo, Yandex or Bing.Add Microdata for describing persons, restaurants,movies, organizations, locations and so on....There are vocabularies for all of these sorts of data.And... by using them you will better ranked in the search resultsyou will appear at a better place, and the resultswill have an enhanced presentation. For a person, you will havethe name, the first name, the organization and maybe a picturethat will be displayed. If your web page contains a locationyou will see a small map, and so on...The course provides step by step explanationsand comes with many examples hosted on jsBin and codePen.These interactive web tools are particularly suitedfor live coding and for sharing small code examples.Do not hesitate to modify the existing examples,or to write your own examples, you cannot break anythingand please, share your creations in the discussion forums,they will be really appreciated by all other students.Enjoy the course and have fun! See you next week!