How to disable selection of the text on a button?

Answer 1

button{
 -webkit-user-select: none;
-ms-user-select: none;
 user-select: none;
}

-webkit-user-select => for Safari
-ms-user-select => IE 10 and IE 11
user-select => Standard Syntax

Answer 2

umunyarwanda thanks! What language is that? CSS ?

Answer 3

Oleksandr Medyanskyi , Yes it's Pure CSS