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← CSS
○CSS Rule Demo: Style an Exhibit Card○Exercise: Write Your First CSS Rule○CSS Selectors Demo: Target Exhibit Details○Exercise: Target Exhibit Details○Apply CSS Demo: Three Sources○Exercise: Apply CSS Three Ways○Specificity Demo: Resolve a Style Conflict○Exercise: Resolve Specificity✦Module Quiz
○Color Palette Demo○Color Palette Exercise○Background Layer Demo○Background Layer Exercise○Type Rhythm Demo○Type Rhythm Exercise○Borders and Shadows Demo○Exercise: Borders and Shadows✦Module Quiz
○Box Model Demo: Seed Packet Card○Exercise: Space a Seed Packet○Display Demo: Swap Table Labels○Exercise: Arrange Swap Table Labels○Positioning Demo: Pickup Pin○Exercise: Pin the Pickup Location○Sizing and Overflow Demo○Exercise: Size a Seed-Swap Notice✦Module Quiz
○Advanced Selectors Demo: Book Cart Sign○Exercise: Target a Book Cart Sign○Pseudo-Classes Demo: Night Cart States○Exercise: Style Night Cart States○Pseudo-Elements Demo○Exercise: Add a Book-Quote Mark
○Lantern Market navigation demo○Lantern Market navigation exercise
○Community garden request card demo○Community garden request card exercise
○Flex Direction Demo○Exercise: Flex Direction○Main-Axis Spacing Demo○Exercise: Main-Axis Spacing○Cross-Axis Alignment Demo○Exercise: Cross-Axis Alignment○Wrapping and Flex Items Demo○Exercise: Wrapping and Flex Items○Flexbox Navigation Demo○Exercise: Flexbox Navigation
○Grid Tracks Demo○Exercise: Grid Tracks○Grid Gaps Demo○Exercise: Grid Gaps○Grid Placement Demo○Exercise: Grid Placement○Responsive Grid Demo○Exercise: Responsive Grid
○River radio schedule demo○River radio schedule exercise
●Field note color system demo○Field note color system exercise○Transforms Demo○Exercise: Rotate a Field Note
○Kite festival signal demo○Kite festival signal exercise
○Garden forecast demo○Harbor forecast exercise○Fluid sizing demo○Fluid weather bulletin exercise✦Module Quiz
○Seed inventory table demo○Tool checkout table exercise✦Module Quiz
○Community maker profile demo○Maker profile sheet exercise✦Module Quiz

Field note color system demo

Mission: Use reusable CSS values to give a field-note card a stable color system.

The :root rule defines reusable colors: --ink, --accent, and --paper. var(--accent) colors the note border and button hover. transition: background-color 180ms ease smooths that hover change; the button does not save data in this CSS-only demo.

Try the demo

Change --accent and run Preview to see both uses update. Restore the color, then hover the button to see the transition.

Checkpoint: the preview already shows the finished field note color system demo interface. The next lesson asks you to recreate its key rules from a small starter.

Hint 1
1 / 2
HINT 1

Keep the stylesheet linked from the document head.

HINT 2

Change one declaration at a time, then use Run Preview to inspect the result.

Loading editor…
READY
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