.hidden-md,
.hidden-lg {
  display: none!important;
}
.col-sm-9,
.col-md-9 {
  width: 75%;
  float: left;
}
.col-sm-6,
.col-md-6 {
  width: 50%;
  float: left;
}
.col-sm-3,
.col-md-3 {
  width: 25%;
  float: left;
}