Change Font size, paragraph breaks on pages

I just purchased Poloray Pro and so far I love it. For some reason I am having a hard time adjusting the font size on my pages I've created as well as inserting specific paragraph breaks. What am I doing wrong here?

 

Hello,

1.Go to js > custom.js present in your theme directory and remove the code gievmbelow

Code:

//Cufon replacement
Cufon.replace('h1',{hover: true})('h2',{hover: true})('h3',{hover: true})('h4',{hover: true})('h5',{hover: true})('h6',{hover: true})('.contentbtn')('.content_info')('.readmore',{hover: true})('.submit',{hover: true});

Now,

Paste this code in Custom CSS
Appearance > Theme Option > Styling Option > Custom CSS

Code:

h1, h2, h3, h4, h5, h6{
font-size:20px!important;
}
p{
font-size:18px!important;
}
a{
font-size:20px!important;
}

Adjust font size as per your requirements.

2.Use line break tag where you want to break the line.

Code:

<br>