Learning CSS on HTML5 for Beginner

All you need to know about HTML

HTML (Hyper Text Markup Language) is a text markup language, which indicates that it is not a programming language like Java, PHP, C or VisualBasic. HTML is the language for writing web pages. Brands, known as tags, describe the way the content on a web page is structured.

Tags describe different elements on the page, for example the <p> tag is used to delimit paragraphs of text and the <img> tag to define images. Responsible for interpreting these tags is a program called a browser, for example, Google's Chrome browser or Mozilla's Firefox. The files that contain the HTML code have the extension .htm or .html, and are plain (plain) text files. Later we will see what editors can be used to create them, in this course we are going to use the Brackets editor.

HTML5

The HTML language is a standard defined and maintained by the international World Wide Web Consortium (W3C) created on October 1, 1994, by Tim Berners-Lee at the Massachusetts Institute of Technology (MIT), the current headquarters of the consortium. In this course we have tried to take into account the tags incorporated into the HTML 5.2 language. in the latest W3C recommendation available on December 14, 2017 as we were writing this course.

 If you want to know the history of HTML and the Internet, visit this basic topic: History of HTML and the Internet

A web page must be written in HTML but it also usually incorporates other elements such as CSS style sheets and programming with the Javascript language. With CSS the aesthetic appearance of the page is defined and with Javascript additional tasks can be performed such as opening and closing windows, validating the data entered by users, and other tasks that require programming. The set of HTML, CSS and Javascript is what is known as the front-end or presentation layer. This layer is executed in the browser, while the back-end or data layer refers to the programming carried out on the server with web programming languages ​​(Java, PHP, Python, ...) normally to obtain and record information in a database. Web-oriented programming languages, executed on the server, are capable of generating the HTML code that will finally be seen in the web browser.

In this course we are going to focus on HTML and CSS style sheets, since Javascript falls into another category, that of programming languages.

We are going to present the HTML tags grouped in blocks according to their use, we will first see the most used ones, in this way we will create simple web pages that we will progressively complete. This will make HTML easier for someone starting from scratch to understand. On the other hand, we also have unit 18 with the HTML tags arranged alphabetically. For each tag a brief definition of the tag, an example of its use and links to view its definition according to W3C.org is shown. In this way, this course can also be used as a reference for those who already know HTML but need to consult a specific tag.

Throughout the course we will do exercises step by step, at the end of each topic there are some exercises proposed with their solution. There are also self-assessments and videos where the fundamentals of each unit are explained. Learning HTML and CSS is easy, go ahead and follow this course and you will see for yourself.