Responsive width

I’m using this pligin for quotes, not testimonials. I turned off the avatar and only showing the content of the quote. You’ll see it near the bottom of the page.

I set it’s width to 99% with
.testimonial_slider__default .testimonial_quote { width: 99%!important; }

However, when rotating a phone or tablet, the width of the quote is not adjusting to the new screen width.

If you start at portrait and rotate to landscape, the portrait width is still maintained, but still shows the full quote.

If you start at landscape and rotate to portrait, the quote is truncated because landscape width is still maintained.

Refreshing the page at that rotated layout, it correctly sees the right screen width.

What needs to be changed?

The page I need help with: [log in to see the link]