Is there anyway to increase the font size in safari?

Hi everyone,

I'm new to the iphone so maybe I'm missing something simple. I have an iphone 5, running ios 8.1.3. Is there anyway to alter the text size within safari? I can't find an application version for this app but am assuming it's the most recent one. I have found how to change text size over the whole phone but that's at a readable level and too big if safari is read comfortably. All searches so far just tell me how to do it with desktop version. I would appreciate any help.

Thanks.