Rotating Text Start

Good morning dear support team,

on the following website we have text as a “rotating heading”: http://final.dc-gmbh.com/en/#rotate
It consists of two sentences:
1st sentence: “An idea without a plan is just a dream”
2nd sentence: “We turn your ideas into reality.”
The rotation time between sets is 4 seconds.
Now it’s possible that you scroll down at an “unfavorable” moment in time and only see the second sentence before the first sentence appears.
Can I use CSS to set it so that the text only starts rotating when the user reaches this point via scroll (similar to the “animated numbers” tool)?
I am very grateful for help.
Kind regards, Diana