Web design and his languages

 What mean:

HTML  :

''HTML (Hypertext Markup Language) is a text-based approach to describing how content contained within an HTML file is structured. This markup tells a web browser how to display text, images and other forms of multimedia on a webpage.''
source [1]: https://www.theserverside.com/definition/HTML-Hypertext-Markup-Language

CSS :


''Stands for "Cascading Style Sheet." Cascading style sheets are used to format the layout of Web pages. They can be used to define text styles, table sizes, and other aspects of Web pages that previously could only be defined in a page's HTML.''

source: https://techterms.com/definition/css


JAVASCRIPT :

''JavaScript is a programming language commonly used in web development.''

source: https://techterms.com/definition/javascript


PYTHON:

''Python is a multiparadigm, general-purpose, interpreted, high-level programming language. Python allows programmers to use different programming styles to create simple or complex programs, get quicker results and write code almost as if speaking in a human language.''

source:  https://www.techopedia.com/definition/3533/python

RUBY:

''Ruby is an open source, object-oriented programming language created by Yukihiro “Matz” Matsumoto. Designed to provide a programming language that focuses on simplicity and productivity, the creation of Ruby drew its inspiration from Lisp, Smalltalk and Perl. Although naturally object-oriented, Ruby can also be applied using procedural and functional programming styles.''

source: https://www.techopedia.com/definition/3301/ruby

References:

[1] Margaret Rouse (2019). [Blog] Available at: https://www.theserverside.com/definition/HTML-Hypertext-Markup-Language (Accessed on: 7 Oct 2019)

[2] Alina (2019). Journal name. Journal title.