Configure font size responsive for all element

Hi,

I use newspaper theme with classic demo to custom my website, but I have a problem.

When I reduce my screen size, font size change (responsive) for “column title” element but not for “title” element:
Show in capture : https://ibb.co/B6LtXWm

How can modify font size element with media css query ?
I try with this :

@media screen and (max-width: 768px) {
    .td-block-title{
        font-size: 70px;
    }
}

But is’t not work !
How can i configure all font size of all element in my style.css (newspaper Child theme)

Best regards

• This topic was modified 7 years by Alexplcr.

My website is offline, i work on my local post !

I take new screenshoot with html and css code !
1 fullscreen shoot and 1 medium screen shoot !
https://ibb.co/sm0dL64

Thx

Best regards

Ah ok, I need to select each device !
It’s work 🙂

Best regards !