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Web development

CSS

The planned outline of 24 modules. Lessons are written, run and reviewed before they are published.

Coming soon 24 modules

Coming soon. This track is being written. Below is its planned outline: a lesson appears here once its examples have been run and its technical review is signed off.

Planned outline

  1. Module 1

    How CSS works

    Coming soon
  2. Module 2

    Selectors

    Coming soon
  3. Module 3

    The cascade, specificity and layers

    Coming soon
  4. Module 4

    The box model, sizing and overflow

    Coming soon
  5. Module 5

    Values, units and math functions

    Coming soon
  6. Module 6

    Colour and theming

    Coming soon
  7. Module 7

    Typography and web fonts

    Coming soon
  8. Module 8

    Backgrounds, borders, images and effects

    Coming soon
  9. Module 9

    Normal flow, positioning and stacking

    Coming soon
  10. Module 10

    Flexbox

    Coming soon
  11. Module 11

    CSS Grid

    Coming soon
  12. Module 12

    Responsive design: media and container queries

    Coming soon
  13. Module 13

    International layout: logical properties, writing modes and Indian scripts

    India-specific Coming soon
  14. Module 14

    Custom properties, nesting, scope and architecture

    Coming soon
  15. Module 15

    Feature queries and the newest conditional CSS

    Coming soon
  16. Module 16

    Transitions, animations, scroll and view transitions

    Coming soon
  17. Module 17

    Forms, tables, popovers and anchor positioning

    Coming soon
  18. Module 18

    Sass and SCSS: syntax, mixins, functions and maps

    Coming soon
  19. Module 19

    Sass modules, migrating off @import and Sass in production

    Coming soon
  20. Module 20

    Bootstrap 5.3: grid, utilities, components and JavaScript

    Coming soon
  21. Module 21

    Customising, upgrading and migrating Bootstrap

    Coming soon
  22. Module 22

    Utility-first CSS with Tailwind CSS 4

    Coming soon
  23. Module 23

    Debugging, performance, accessibility, tooling and print

    Coming soon
  24. Module 24

    Design to code and interview preparation

    Coming soon

Related tools

CSS Grid Generator Paint named areas, size the tracks and get responsive CSS grid code, HTML or Tailwind. CSS Box Shadow Generator Stack shadow layers visually and copy clean CSS, a Tailwind class or a whole shadow scale. CSS Gradient Generator Drag color stops, blend in OKLCH or sRGB, and copy the CSS — or save it as a wallpaper. PX to REM Converter px ⇄ rem, em and every CSS length unit — or convert a whole stylesheet at once. Color Contrast Checker (WCAG 2.2) Test text and background colors against WCAG 2.2, then fix them in one click. CSS Formatter Pretty-print CSS for reading, or minify it for production — without breaking it.

Official documentation

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