Hi,
I referred the above notes but they are a little too advanced for my level. I managed to specify settings for only product page titles but do not know how to fine tune it within the element itself. Refer to below attached. 
I wanted to have different font size and weight within the product title; applying only to the 2nd row. The 1st row is the brand name and which I defined already under advanced typo. 
Somehow the CSS does not work. Please advise.
Thanks. 
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