@media all and (min-width: 640px) {
  div {
    color: #f00;
  }
}
@media only screen and (min-width: 640px) and (min-height: 960px) and (orientation: portrait) {
  div {
    color: #f00;
  }
}
@media print {
  div {
    color: #f00;
  }
}
div {
  color: #f00;
}
div {
  color: #f00;
}
div {
  color: #f00;
}
@media only screen and (max-width: 767px) {
  div {
    width: 100%;
  }
}
@media only screen and (max-width: 767px) and (min-width: 640px) {
  div {
    width: 100%;
  }
}