Reduce gaps on the product page in Sense theme

[Rooftopwork]

Hi, 

i am using the Sense theme and I would like to reduce the gaps between all the product elements like:

Main Image

-----

thumbnails

-----

Product title

-----

review stars

----

price 

and so on

Also i would like to know -> How to put the Produt title in bold 

How to make the preview thumbnails pictures on the product page smaller and the Main image bigger

Thank you

[Finer]

@Rooftopwork those are more request that would require some code changes. Just to make sure I understand your request correct – Are you looking for someone to change the code for you, or will you make the changes by yourself and just need a hint on how to make all the changes?

[Rooftopwork]

@Fin  Hi, i was hoping for somebody to paste the code so i can edit the specific file on the theme liquid or somewhere else