[Preloader for my site, propably .js and CSS]

Hello, and thank you so much for help, it's awesome! 

 

Do you have any idea how to make the other part with this inscription?

How can I add it to a page in Wordpress later?

[Preloader for my site, propably .js and CSS]

Hi, my dears,
I create simple websites using Wordpress. I have a question from a client who is very determined to make a preloader like the one below.

https://evagher.com/en/

 

There is a line, separates the screen into two parts and the word "Eva" appears. I need exactly the same, just another logo and the inscription "Club44".

I don't know how to do it technically, I'll put up with the source, but I need your help. Could you tell me how I can do it? Thank you in advance!