Problems with links in span tags

Hey,
I try to scrape address data from the German Yellow pages and have problems getting to the "Details" page of every hit from the search results:

For example on this site:

I am interested to get to the "Mehr details" page by using a link selector.
On the first hit "Breitenstein..." the button is in span tags:
<span class"contains-icon-details gs-btn" ...
On the second hit "CM system..." the same button has an a tag:
<a class "contains-icon-details gs-btn" ...

On the second one I can use the link selector without problems, but on the first nothing happens.

My question: Is JavaScript used to realize the links to the details page in case of the span tags?
di I have a chance with webcraper.io to follow this link?

Thanks a lot.

Url: http://example.com

Sitemap:
{id:"sitemap code"}

Would be hard to handle both types at once. But if you look at every row, there is a "Mehr details" button which goes to the same "Mehr details" page. It is a standard HTML link <a href> So you can use that instead.

Type: Link
Selector: a.contains-icon-details