So align attributes are not supported in html 5

Question

Seriously

Answer 1

Yes.
Use can with CSS

h1{
align:center;
}

Also note that align attribute will not work with inline elements
Example:
img{
align: center;
}
/* The code above will not work */

In the above case use that inline element in block element and then align center.
Html:
<p>
<img src="url">
</p>

Css:
p{
align: center;
}

Happy coding

Answer 2

Affum kwabena Karkari
Looks like you have declared it officially..
https://www.sololearn.com/learn/HTML/1029/?ref=app

--
Jan Markus even he's "serious about that"
¯\(◉‿◉)/¯

Answer 3

Sololearn