Creating Flexible and Customizable Forms

Hello Sir,
I watched a Video. This one– https://www.youtube.com/watch?v=ImB8otQr5Yk

And also this one– https://www.youtube.com/watch?v=30NowHy3Jbo&t=47s

And the Meta showed that the Videos are at least 3 Years ago. You can see that here– https://prnt.sc/GHBuNWB9086R

Now, it’s those Videos that made me decide to use Profile Builder for my Login, Registration and Edit Profile Forms. Else I just wanted to use Profile Grid.

Now, my displeasure with Profile Builder is that it doesn’t look very Customizable:

See this Form— https://prnt.sc/in1A0Cv38k4s

The Login button is in the Middle.

And this Form– https://prnt.sc/-UCxpjJq_pWi

The Button stretches from Beginning till end.

I want to build my Forms exactly like those 2 Forms above.

Can I Customize Form Fields in Profile Builder? I mean, can I wrap them in Divs just as is possible with Contact Form 7, and be able to determine their Width and Height?

Or, can I customize the Form Fields with Width, Height, Margin, Padding, Color, Backgroud Color, Border Radius, and all such settings?

Needing to hear from you soon.

Regards.