The title is displaying fine, but not the content text.  I should have been more clear.  However, I just figured it out.  🙂
In responsive.css, you have:
@media screen and (max-width: 767px) {	
[..]
	#main-slider .entry-container .entry-content {
		display: none;
	}
I had tried putting “display: block;” with my slider text font, but hadn’t noticed that it only had “#main-slider .entry-content” and not “#main-slider .entry-container .entry-content”.  In other words, I had tried:
@media screen and (max-width: 768px) {
    #main-slider .entry-content a {
        font-size: 16px;
        display: block;
    }
}
But that didn’t work.  However, the following does work:
@media screen and (max-width: 767px) {	
    #main-slider .entry-container .entry-content {
        display: block;
    }
}
Now I need to mess with the font sizes a little more so that it looks good on mobile. 🙂 Thanks for you help though!