In some cases, you might upload a video has been recorded vertically. To avoid compromising the easiness to read the captions, we ask out transcribers to use the following criteria:
​
Use a maximum of 32 characters per line and keep the 20 characters per second.

This will very likely show three lines in the editor instead of two. Since we cannot afford to decrease the number of characters per second (the captions would change too fast and we would not be able to follow what is written), we ask you to manually change the captions to a smaller font size from our editor until only two lines appear.

Here is how to do so: https://intercom.help/happyscribe/en/articles/6087169-how-to-change-the-subtitles-size