Roll-Up vs. Pop-On Captions: What’s the Difference?
by Lily Bond in How-To
Roll-up and pop-on captions are the two main styles of line 21 closed captions. Even if you don’t know the difference by name, you’ve most likely seen examples of these two styles many times before. Here’s a run-down of the differences, and…
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Updated June 3, 2019
