To test the codes, HTML5 and CSS3, on the different browsers : Cliquer ici
Link to the modernizr site, or how to learn more about HTML and JavaScript. Essential site to learn the codes. Expert Level : Cliquer ici
This site allows you to deepen your knowledge of css3: properties, selectors, CSS request, in a clear way : Cliquer ici
TheFrontEndCheckList, is useful to check your website, it is a silly little thinker to check your codes, it is classified by importance of priority: Cliquer ici
There are many symbols in HTML or CSS, here is the list of these symbols (different formats: UNICODE, HEX CODE, HTML CODE, HTML ENTITY) Expert level: Cliquer ici
Here is help to start your website, and the basic codes. The basics for develop a site. Beginner level: Cliquer ici
Here is help (in French), to configure the robots.txt file, a file that helps search engines referencing your websites. Confirmed level: Cliquer ici
Testing your material with JavaScript exercise and link to programming courses (in French): Cliquer ici
- Database for graphic icons (partly free) http://www.flaticon.com/
- MacforEver, is an information website on the environment of Macs and Apple and Co, also talks about HighT-Tech: mac4ever.com
- Another blog, which I built on WordPress, Linux Thib, the address is : https://linuxthib.com/
- Sites for annihilated GIF images : lien1 / lien2 / lien3 /
To see my CV. 
- Book for WEB programming: Succeed in your website with XHTML and CSS by Mathieu Nebra. (Edition eyrolles / acces libre)
- To understand the style sheets in css, this superb site that deals with CSS (in French) (zone CSS)
- Thanks la Voix du Nord to the Voix du Nord for its valuable information on the exhibitions.
- Book for WEB programming: a little more HTML5 and CSS3 techniques by practice by Daniel-Jean David (Edition ellipes).
- Book on CSS3: Adoptez les feuilles de styles
par Christophe AUBRY (Edition ENI).
- Book on CSS3: langage de programmation interprété, Python, par Patrick Funchs et Pierre Poulain (Edition Dunod).
- Thanks to the audio streaming sites, Apple Music, Deezer, Spotify.
- At the site Youtube.com
- For information on singers, where I partially searched for my information on the Wikipedia web site.
- For video training, learn HTML5 CSS3 javascript PHP or jQuery: thanks to the Udemy site and its trainers..