HELP!!! Pipeline 5.0 Theme

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Hi All
My website is 
I would like to make the product titles under Best Sellers section (i.e.Featured Collection on homepage) and the individual product titles in Collection pages have the first letter of each word to be capitalized, everything else lowercase. 
2. How do I change the font size of the price on product description pages? 
3. Make the price on product description pages be moved UNDERNEATH the product title, instead of on top of the product title.
4. Make the Buy It Now button always be my default designated button, and not change to "Buy with G Pay"  or some other payment option. 
5. How to change the colour of SHOP NOW or VIEW ALL buttons? 
Thank you, 
ELLB 123