@media only screen and (min-width: 1200px) {
  [insert css here]
}

@media only screen and (min-width: 960px) and (max-width: 1199px) {
  [insert css here]
}

@media (min-width: 768px) and (max-width: 959px) {
  [insert css here]
}

@media (max-width: 767px) {
  [insert css here]
}

@media only screen and (max-width: 480px) {
  [insert css here]
}