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

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

Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may …

This tutorial follows Bootstrap 3, which was released in 2013. However, we also cover newer versions; Bootstrap 4 (released 2018) and Bootstrap 5 (released 2021).

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Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu.