@media only screen and (min-width: 960px) and (max-width: 1023px) {

}
@media only screen and (min-width: 768px) and (max-width: 959px) {
}

@media only screen and (min-width: 320px) and (max-width: 768px) {
	.sticky > #top_header {
    display: block;
}
}