Trail
CSS
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Trailhead · 400 m
Level 1: First Steps
Meet rules, selectors, colors, and your first text styles.
Pine Camp · 900 m
Level 2: Boxes & Units
Learn how every element is a box and how CSS measures it.
3 lessons wait here. Finish level 1 to open them.
Ridge Camp · 1,500 m
Level 3: Cascade Rules
Discover which rule wins and how to target elements precisely.
3 lessons wait here. Finish level 2 to open them.
High Camp · 2,200 m
Level 4: Flex & Grid
Line things up with flexbox and build simple grid layouts.
3 lessons wait here. Finish level 3 to open them.
Summit Push · 3,000 m
Level 5: Modern Polish
Position, adapt, and animate with media queries, variables, and transitions.
3 lessons wait here. Finish level 4 to open them.
The summit
Finish all 15 lessons to earn your CSS certificate.