Complete text in CSS

Question

I would like to know how I make a span appear only when it is in the mobile version:

In the image, I would like the text "Exit", appear only when changing to mobile version. Has as?

Answer 1

I would do so, if you started to develop with first mobile or started to develop for mobile first vc uses (min width) or if started by pc uses max @media screen and (max width: 600px){ span: display:None; }