I used a user stylesheet that added max-width: 50ex; to <p> and <li> tags for a long while, but found too many sites ended up funny (especially those that mixed

I used a user stylesheet that added max-width: 50ex; to <p> and <li> tags for a long while, but found too many sites ended up funny (especially those that mixed <p> and <br>). These days I just make my browser narrow.