Hi Brett. Thanks for the helpful screencast.
I visited your site at http://www.startwithhappy.com/events/ and determined this custom CSS should solve your problem:
@media screen and (max-width: 767px) {
#tribe-events-content a.tribe-events-read-more {
color: white;
}
}
You can add custom CSS code via your child theme’s style.css file or via a plugin like Simple Custom CSS or, my favorite, Jetpack. Jetpack supports regular CSS and the LESS and Sass pre-processors.
If you’re not a CSS expert, Jetpack’s Custom Design reference may prove helpful.
Please let me know how it goes for you.