If you'd like to set a different size for the titles in your ESP newsletters, you can do so by adding the following code in the ESP dashboard under Template and Style → Settings → Custom CSS:
@media screen and (min-width: 600px) {
a.line-text span[style]{
font-size: 60px !important;
line-height:60px !important;
}
}
@media screen and (max-width: 600px) {
a.line-text span[style]{
font-size: 10px !important;
line-height: 10px !important;
}
}
The first CSS is for desktop, the second for mobile screens.
You can customize the example values of 60px respectively 10px based on your preference.