does anyone know how to do this or know a code for this in dreamweaver

so basically i am making a website on dreamweaver and i would like to know how to do something like this

http://tooyoungtowed.org/

in the corner there is a twitter and Facebook logo i would like to know how to do it when you press them

or does anybody have any other similar creative idea

twitter - with a tweet it does not have to be a real tweet, this is for my coursework