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

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What Are Git Submodules? Git submodules let you include one Git repository inside another as a subdirectory. This is useful for adding libraries or dependencies managed in separate repositories, …

The box-sizing property allows us to include the padding and border in the box's total width (and height), making sure that the padding stays inside of the box and that it does not break. You can read more …