Is it possible to combine html and css in one document? If yes then how

Question

Css

Answer 1

Yes, you can. Basically there are 2 ways:
#1: put your css code inside of <style></style> tag in the head section of your html document.
Ex: <style>
body{color:red; width:100%;}
</style>
#2: write your css code inside style attribute of the opening tag of html element.
Ex: <div style="background:green; position:relative;"></div>.
Hope that help!

Answer 2

Yes of course you can use the <style> element or style attribute. But it is recommended to put it in separate file

Answer 3

Inline, embedded, , external - all 3 are explained here

https://www.sololearn.com/learn/CSS/1079/?ref=app

Answer 4

And more detail here: https://www.w3schools.com/css/css_howto.asp