what difference between html and css?

Answer 1

HTML is used to organize and present data. CSS is used to style that data so that the presentation of the data is more appealing.

HTML - organize and present your data
CSS - style the data you're presenting

Answer 2

html is hyper makeup language

Answer 3

Simply you can say
HTML is bone of the body and CSS is muscles.
Basically HTML is use to develope webpage and CSS is use to decorate our webpage.