.col-st-sm-4, .col-st-md-4, .col-st-lg-4, .col-st-xl-4 {
  position: relative;
  width: 100%;
  padding-right: 15px;
  padding-left: 15px;
}

.col-st-sm-3, .col-st-md-3, .col-st-lg-3, .col-st-xl-3 {
  position: relative;
  width: 100%;
  padding-right: 15px;
  padding-left: 15px;
}

.col-st-sm-6, .col-st-md-6, .col-st-lg-6, .col-st-xl-6 {
  position: relative;
  width: 100%;
  padding-right: 15px;
  padding-left: 15px;
}