Air Theme

Theme
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573

Okay I haven’t tested this but give this a try create a new Theme component

Edit CSS Common and add this code. I was looking at the Air Theme source in GitHub

// custom search banner customizations
.custom-search-banner-wrap {
   h1 {
    Font-size: 44px !important; 
    }
}

The first section in the Air theme Common CSS has mods for the customer banner. So I was able to use that as a guide for the code above.