How we create green color square in html?

Answer 1

<div style="height:100px; width:100px; background:green;"></div>

keep patience learn ahead then come to practise if problem then ask with code.
Don't post here homework for other .
you have just completed one lesson in html and trying to get everything!!!

Answer 2

Background the div of equal dimension to green.
go ahead in your course you will get that.