How to i make the price font size show smaller on the mobile phone? I am using Samsung Note 3 for testing along with Ipad

I dont have issue changing the css for the desktop screen view, which i can change it through the style.css below.

#list-view .list-prod .price
.white .price span

However, when i view it on the cell phone samsung note 3 the price font is too large and it doesn't seem to automatically resize responsively to follow the smaller screen size

Thanks

@ysalim
It is just personal preference how you see font size.
You can find responsive styles in responsive.css

This is not just personal preference, in our country 1 USD is about 14,000 so the digits are long and when doing responsive it doesn't show properly because it doesn't automatically resize the large number into smaller area.

This can be more helpful if you can provide me with more hints and clues on which part of the css in the file that i need to change to make the price displays with smaller font size so that I can update it on my side.

Thank you