Post title stacks after selecting read more

We have a number of posts on our website in a menu called “News”. There are a bunch of news articles in here and after selecting read more at the bottom of each post you are directed to a page with just the one post on it.

Once on this new page each new line of the title of the post stacks itself on the previous line.

Here is an example: https://www.studiotrilogy.com/?p=674

I am assuming it has something to do with the template we use.