hsl() and hsla()
Level 4 of 9Your goal
Make .box 140 × 140 with a 6px solid border (outer size 152 × 152), and set background-color to hsl(9, 100%, 64%).
Must use
background-colortarget content boxtarget outer edge (green = matched, red = not yet)
Feedback updates as you type, and your CSS is saved in this browser. Exact target numbers are in the Target panel.