user-select

The user-select property text unselectable.

.row-of-icons {
  -webkit-user-select: none;  /* Chrome all / Safari all */
  -moz-user-select: none;     /* Firefox all */
  -ms-user-select: none;      /* IE 10+ */

  /* No support for these yet, use at own risk */
  -o-user-select: none;
  user-select: none;          
}

This is useful in situations where you want to provide an easier/cleaner copy-paste experience for users (not have them accidentally text-select useless things, like icons or images). However it’s a bit buggy. Firefox enforces the fact that any text matching that selector cannot be copied. WebKit still allows the text to be copied if you select elements around it. There is no spec for this property (non-standard) so it’s unlikely to change until there is.

Browser Support