How to resize the header of a post?

Hello everyone its me again,

I also could not figure out how to resize the header in a post. I tried all the different font sizes out but nothing really worked.

As you can see here

http://www.lifeofnino.com/the-great-benefits-of-green-tea/

The header “The Great Benefits of Green Tea” appears very small. How can I change the font size here?

Thank you already in advance!

Hello,

If you want to change this globally, apply css code below:

.hentry .title-post {
    font-size: 30px;
} 

and in case that you only want to target posts, then apply following css code instead:

body.single.single-post .hentry .title-post {
    font-size: 30px;
}

You can apply the code with some css plugin, like this one https://wordpress.org/plugins/simple-custom-css/

Best Regards!

Thank you so much @dimikjones!