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YouTube: larger captions

Enlarges the on-video captions and gives them a clearer backdrop so they are easier to read.

Code to copy

/* Make on-video captions larger with a readable backdrop */
.ytp-caption-segment {
  font-size: 1.15em !important;
  background: rgba(0,0,0,0.78) !important;
  line-height: 1.4 !important;
}
.caption-window { bottom: 8% !important; }

How to use this example

1. Copy the code with the button above.
2. Install JustZix (2 minutes) and open the extension on the target page.
3. Add a new rule matching that page.
4. Paste the code into the rule's CSS panel and save — the effect appears instantly.