How can I alter font size in JSON templates?

[torshov]

hey hey i really need help on how i can change the font size on templates/json. I've tried a huge variaton of different codes and i still do not figure it out. I have somehow made half of the text 20px and the other 22px.

first time making a website and using code. 

thanks in advance

[Simonsron]

< p style =" font-size : 20px ; " > First content...... </ p > 
< p style =" font-size : 22px ; " > Second content...... </ p >

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