You’ll have to clarify your question, as it’s not clear. Perhaps post an example file that demonstrates the problem. Here’s a template you can use for that:
Hi as Ralph said its not clear which issue you are referring to but you do have a typo in the media query where you have forgotten the brackets. It should be like this:
@media screen and [B](min-width:480px) and (max-width:767px)[/B] {
.wrapper {
width: 95%;
margin: 0 auto 0 auto;
}
}