Draw a horizontal line to better keep track of the text in the Intersteno typing applet

Read a description of what this userscript is for and what it does on this English page on my otherwise Dutch blog:
https://toptypers.blogspot.com/2025/06/a-userscript-for-taki-applet.html

Or click here for the Dutch version:
https://toptypers.blogspot.com/2025/06/een-userscript-voor-de-taki-applet.html

Start here to use the Intersteno typing applet (Taki version) for training:
https://www.intersteno.org/intersteno-internet-contests/training-with-taki-version/

Or when you have registered for a competition that is currently active, you can log in here:
https://org.intersteno.it/members/login.php