My question is whether I can change the css of the above text (e.g. to bold) when that related tab is selected/active to replicate what currently happens on tabs?
So this is the page, the links on the left handside are templates that are replacing the tabs set (which I have hidden). The reason for using templates is that I can update the count numbers be setting a render action every few seconds.
Each template link will load re-direct to the tab contents which is a page include.
So, I would like to have the links (on the left) to be highlighted when that relevant tab is active.
Alright, then in your snippet you would have to add a class (e.g. active-menu-point) to the clicked template (and of course remove all the other active classes).
Afterwards you can set the style on the given class.