
It did but after I cleared the cache and logged in again...
This works A LOT better, it instantly changes the size of the slider without having to clear cache, of course because now it is automatically rendered with heainclude as soon as the page loads, very smart solution my friend. I wasn't even aware either that you could have a template as CSS and not have to name it like one. Thank you very much for your help. Now it is truly resolved.