Duration and delay
Level 3 of 9Your goal
Freeze the box exactly halfway through its 200px slide, so it rests 100px to the right of its start. Set animation-duration, plus a negative animation-delay equal to half of it.
Must use
animation-durationanimation-delaytarget 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.