Can't modify the Tags' style in Blackbird

I'm using Blackbird Responsive theme for our website http://tshaero.com

There is an issue with the style sheet that I can edit and update without any problems but amendments are not displaying. For instance, I'm trying to modify the size of the font of the Tags (H1, H2...) and it's not working. Could you have a look please?

Thanks in advance.

 

Check under your Functions.php area. That's where I go to customize my font & all.

I also noticed I'd need to close & open my browsers or use a new browser to see any changes immediately for some reason when adjusting fonts. I generally use firefox, but I noticed this happened all the same in all browsers.

 

Thank ashybaby87 but this didn't work for me. Same issue remains.

 

Please specify, which headings you want to change.
We will provide you exact code for that.

 

Nitesh,

Ideally, I'd like to be able to modify all head ins (H1 to H6). I can perfectly do this in other themes I'm using but not in Blackbird apparently...

If you provide the code, let start with H2 at 16px and H3 at 14px then.

Thanks,