Hello,
Yes, unfortunately this documentation page is really up to date, so with your post it's clear that we have to update it quite soon.
Now, in order to help you, follow me step by step :
- First, when you want build your selector (with required html class), point with your mouse, then click on click-right and select inspect (or inspector tool, etc...), a new window will open that display your html, and able you to see the elements class, see my screenshot :
Second, I think that to get what you need, you can use the
2 blocks (login & inscription) html class with these commands :
display: block;
width: 100%;
These commands, will enlarge the 2 blocks, but as you can see the login block is above the inscription block.
And then, for pass your login block below your inscription block :
position: relative;
top: -290px;
And for your inscription block on the top :
position: relative;
top: 1030px;
Hope this will help you to get what you need.
Regards