It was caused by updating `asciinema-player`, the upstream changed the
CSS class prefix:
`
						
					
				
			 | 
			||
|---|---|---|
| .. | ||
| asciicast.css | ||
| codecopy.css | ||
| content.css | ||
				
					
						
							It was caused by updating `asciinema-player`, the upstream changed the
CSS class prefix:
`
						
					
				
			 | 
			||
|---|---|---|
| .. | ||
| asciicast.css | ||
| codecopy.css | ||
| content.css | ||