@media screen and (min-width:1200px) {
  .span7a {
    width: 32%;
  }
}

@media all and (min-width: 1200px) {
  [class*='span'] {
    margin-left: 1%;
  }
}

@media screen and (max-width: 1199px) and (min-width: 980px) {
  .span7a {
    width: 32%;
  }

  [class*='span'] {
    margin-left: 1%;
  }
}