W3Schools in English - TheBest

is an educational site for aspiring web developers built on top of the popular W3Schools.com with additional materials and explanations.
You can also go to the Ukrainian-language (Ua) or Russian-language (Ru) version of the site.

HTML

Language for creating web pages

HTML - hypertext markup language for creating web pages. HTML is not a programming language. With the help of html tags, markup is carried out on a web page, with the help of which various objects of a web document are placed: headers, text, images, tables, lists, frames, video players, etc.

Learn HTML HTML Reference

HTML Example:

<!DOCTYPE html>
<html>
<title>HTML Tutorial</title>
<body>

<h1>This is a heading</h1>
<p>This is a paragraph.</p>

</body>
</html>

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CSS Example:

body {
background-color: lightblue;
}

h1 {
color: white;
text-align: center;
}

p {
font-family: verdana;
font-size: 20px;
}

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CSS

A language for styling web pages

CSS (cascading style sheets) - a language that is responsible for the visual presentation of information and the design of a web page. Styles are used to format text and other stylization (design) of objects on a web page. CSS is usually paired with HTML.

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CSS

A language for styling web pages

Learn CSS CSS Reference

CSS Example:

body {
background-color: lightblue;
}

h1 {
color: white;
text-align: center;
}

p {
font-family: verdana;
font-size: 20px;
}

Try It Yourself »

JavaScript

Language for programming web pages

JavaScript (JS) - programming language, the third component (together with HTML and CSS) of standard web technologies, is used to create websites. JavaScript makes static web pages dynamic, fluid and user-friendly. The JavaScript programming language manages media, animates images, changes text on a web page, and more.

Learn JAVASCRIPT JAVASCRIPT Reference

JavaScript Example:

<button onclick="myFunction()">Click Me!</button>

<script>
function myFunction() {
var x = document.getElementById("demo");
x.style.fontSize = "25px";
x.style.color = "red";
}
</script>

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SQL Example:

SELECT * FROM Customers
WHERE Country='Mexico';

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SQL

Database Access Language

SQL (Structured Query Language) - a declarative programming language used to create, modify and manipulate data in a database managed by a database management system.

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SQL

Database Access Language

Learn SQL SQL Reference

SQL Example:

SELECT * FROM Users
WHERE Country='Ukraine';

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Python

Popular programming language

Python - a high-level general-purpose programming language focused on improving developer productivity and code reading. It is used for programming both general applications and web programming (website development). Recommended for beginners learning web programming, as well as the first programming language for beginners due to its simplicity and accessibility.

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Python Example:

if 5 > 2:
print("Five is greater than two!")'

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PHPWeb server programming languagePHP (Hypertext Preprocessor) is a general-purpose scripting language used for developing web applications. It is supported by the vast majority of hosting providers and is one of the main languages used to create dynamic websites. PHP is often used to create a CMS - a content management system (site engine). PHP runs on the server side (backend) providing user interaction. Sites such as Facebook, Yahoo, Vkontakte, Wikipedia, the Wordpress engine, etc. have been created in PHP. The PHP programming language you can Learn online on the site W3Schools in English.
Learn PHP
jQueryJavaScript library for developing web pagesjQuery - popular JavaScript open source library. The jQuery syntax is designed to make navigation easy by selecting DOM elements, creating animations, handling events, and developing AJAX applications. Helps to create powerful dynamic web pages. For the complete online course on the jQuery library, visit W3Schools in English.
Learn JQUERY
JavaProgramming languageJava - object-oriented programming language. Used to write client applications and server software. To take the Complete Course Online in the Java Programming Language, visit W3Schools in English.
Learn JAVA
C++Programming languageC++ - a compiled, statically typed general-purpose programming language. C ++ is used to write computer programs, games, operating systems, and more. You can Learn the C++ programming language online at W3Schools in English.
Learn C++

            W3.CSS
            A modern CSS framework from W3Schools for building faster, more responsive web pages
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            Bootstrap
            CSS framework for easy and fast creation of stylized web pages
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