Can I make this font bigger only on mobile?

Site URL: https://www.lildarkartz.com/

I could not find a code to make this font bigger on mobile only, is there a way to do that?

1 hour ago, lildarkartz said:

Site URL: https://www.lildarkartz.com/

I could not find a code to make this font bigger on mobile only, is there a way to do that?

Try adding to Home > Design > Custom Css

@media only screen and (max-width: 767px) {
  #block-216b18a8e2da6423e48e span {
    font-size: 50px;
  }
}

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