Text on mobile view – 1 or 2 characters per line

Hello,

i love Vantage theme!

But in my project on the main page i found that only 1 or 2 characters per line are displayed on the mobile (Redmi 3S, Galaxy S8, etc.). How to fix it?

Here is screen:
https://drive.google.com/file/d/1DdyWlhSNhD9lAQxnLR78AQXINg0_5nvy/view?usp=sharing

Here si web:
www.estetikapolakova.cz

Pleas give me some tips or solution.

Thank you.