.wrap-selector {
  color: black;
}
.wrap-selector {
  color: red;
}
.wrap-selector {
  color: black;
  background: white;
}
header {
  background: blue;
}
@media screen and (min-width: 1200) {
  header {
    background: red;
  }
}
html.lt-ie9 header {
  background: red;
}