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HTML Exercises Many chapters in this tutorial end with an exercise where you can check your level of knowledge.

Python Exercises Many chapters in this tutorial end with an exercise where you can check your level of knowledge.

XSL (eXtensible Stylesheet Language) is a styling language for XML. XSLT stands for XSL Transformations. This tutorial will teach you how to use XSLT to transform XML documents …

We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new. Take breaks when needed, and go over …

Python Classes/Objects Python is an object oriented programming language. Almost everything in Python is an object, with its properties and methods. A Class is like an object constructor, or a …

C# Exercises Many chapters in this tutorial end with an exercise where you can check your level of knowledge.

CSS Flexbox (Flexible Box Layout) CSS Flexbox is short for the CSS Flexible Box Layout module. Flexbox is a layout model for arranging items (horizontally or vertically) within a container, in a …

PHP Tutorial PHP is a server scripting language, and a powerful tool for making dynamic and interactive web pages.

Learn how to add CSS to your HTML documents using inline, internal, and external methods for styling web pages effectively.