Read More Toggle Pure CSS not working correctly.

Hi guys,

I’m trying to add this Read More toggle feature on my site, but it’s not adding the “show more” text label. it’s just showing a dash. When i click on the dash, the toggle works as expected, but why isn’t the text label working.

Here’s what I’m trying to duplicate on my site:
https://codepen.io/Idered/pen/AeBgF

Here’s what it’s actually doing on my site:
http://www.monarchschool.org/test-toggle

I’m using drupal 7.5

Any ideas? Thanks!

Drupal version: 


Source: https://www.drupal.org/taxonomy/term/22/feed