This is the way to hide a div when the screen is smaller or bigger and this is
useful because if a picture lags a website on a phone then you can tell the website not to load it on a phone.
As you resize a web page that does not use bootstrap then the divs will not get smaller and
that means that it is really anoying to read on a phone because you have to zoom in on different parts of the website where as if you use bootstrap then the divs will resize and it makes it much easier to read.
using bootstrap you can also have an image resize as the screen size resizes and you can also hide it which would let a slow or smaller device
not have to try and load a big picture.
Congragulations you accessed this page on a phone if you want to see what else this webpage has to offer then you have to go onto your computer
and resize the browser to different sizes. Happy searching.
Mr. Rodin said that I could not just label this footer