Different Font Size in Headlines of Header Highlights

Hello Catch-Team, After a long time, again a request for help. I have a Header Highlights Section with 3 main tiles on my Frontpage and discovered an unlikely behavior regarding the Font-Size of the Texts. At the moment, the Text of the middle tile is larger than the text of the tiles left and right. See also my attached Screenshot. Is there a way to have all three texts sizes equally ? The screenshot with further explanations can be found here on my Portfolio: https://5bp-galerie.de/p832266030/e1bf8d903