Give the eye a stable place to return
Rapid B-roll changes can feel disconnected. Consistent caption typography and placement give the viewer a thread to follow through the sequence.
Use emphasis to structure the voiceover
Highlight the problem, key fact, transition, and payoff rather than every word. Selective emphasis makes the narrative easier to scan.
Stay readable over unpredictable footage
A heavy outline, shadow, or background panel protects legibility when the footage moves between bright, dark, detailed, and minimal shots.
Move captions when the B-roll subject moves
Products, hands, screenshots, and faces may occupy different areas in each shot. Per-line positioning keeps the words out of the way.
