My takes on the certification projects in the curriculum of FreeCodeCamp at https://www.freecodecamp.org
- Using check boxes, radio buttons
- Working with fieldsets, fields, inputs
- ...
- References in CSS by ID and by Class
- Sizing images
- Handling borders
- Working with padding and margin
- ...
- Using the CSS display-property
- Using various units
- Using Grids
- Changing CSS parameters using media@ queries
- ...