Will the span tag in the H1 tag affect SEO?

Question

HTML

I need a large title on the homepage.
Will increasing the h1 font of the title affect SEO?

<h1><span style="font-size: 36pt;">ТЕКСТ</span></h1>

Answer 1

Instead of
css

.my-super-font36{
    font-size: 36pt;
}

Answer 2

And can you do that?
<h1>ТЕКСТ <span>еще текст</span></h1>

Answer 3

No, but you can achieve the same effect by applying the same style to the h1 itself.

Answer 4

It seems to be not.