Recent Posts
Python Tutorial / Build a First Program with Variables, Input and Output
Read expense input, convert text to an integer and format a result. Understand assignment, comments, f-strings and the source of common conversion errors.
Python Tutorial / Create Virtual Environments and Manage Packages with pip
Use venv and python -m pip to separate projects, record dependencies and troubleshoot interpreter, package and activation problems.
CSS / Reference / aspect-ratio: Preferred Ratios, Natural Images, and Constraints
Use preferred aspect ratios with automatic sizing and inspect competing constraints. Distinguish a replaced image’s natural ratio from its CSS box and object-fit behavior.
Python Tutorial / Write and Run Python in VS Code
Choose a virtual-environment interpreter in VS Code, run a complete Python script and use a breakpoint to check values while diagnosing environment mismatches.
Python Tutorial / Set Up Python on macOS and Ubuntu
Prepare a Python development environment on macOS or Ubuntu without replacing system Python. Verify paths, create a virtual environment and test execution.
CSS / Reference / accent-color: Native Control Accents and Accessible States
Request native-control accent colors without replacing their behavior. Compare selected and disabled states, accessible names, and browser-dependent contrast treatments.
Python Tutorial / Install Python on Windows and Verify the Interpreter
Set up Python on Windows with the official Install Manager, create a project environment, and verify command resolution, versions and executable paths.
CSS / Reference / border-width: Side Widths, Shorthand Order, and Box Size
Set border widths using valid lengths and shorthand ordering. Inspect none, box-sizing, and hover changes without treating keyword widths as fixed pixels.
Python Tutorial / What Is Python? Features and Practical Uses
Understand Python’s role, distinguish source files from the interpreter and terminal, and run a complete expense-total example with a small follow-up experiment.
CSS / Reference / align-content: Flex Lines, Grid Tracks, and Available Space
Distribute available space in flex, grid, and supported block layouts. Compare wrap with nowrap, fixed with auto tracks, and content-group alignment with item alignment.