is:
@media (expressions) {
CSS-Code;
}
the same as:
@media only screen and (expressions) {
CSS-Code;
}
is:
@media (expressions) {
CSS-Code;
}
the same as:
@media only screen and (expressions) {
CSS-Code;
}
If you omit media type, it defaults to all.
So, no, they are not the same.