.d-flex {
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
}

.flex-column {
  flex-direction: column;
  -ms-flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.d-inline-flex {
  display: -webkit-inline-box;
  display: -webkit-inline-flex;
  display: -moz-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-align-self: auto;
}

.justify-content-start {
  -webkit-justify-content: flex-start;
  -moz-justify-content: flex-start;
  -ms-justify-content: flex-start;
  justify-content: flex-start;
}

.justify-content-end {
  -webkit-justify-content: flex-end;
  -moz-justify-content: flex-end;
  -ms-justify-content: flex-end;
  justify-content: flex-end;
}

.justify-content-center {
  -webkit-justify-content: center;
  -moz-justify-content: center;
  -ms-justify-content: center;
  justify-content: center;
}

.justify-content-between {
  -webkit-justify-content: space-between;
  -moz-justify-content: space-between;
  -ms-justify-content: space-between;
  justify-content: space-between;
}

.justify-content-around {
  -webkit-justify-content: space-around;
  -moz-justify-content: space-around;
  -ms-justify-content: space-around;
  justify-content: space-around;
}

.align-items-center {
  -webkit-box-align: center;
  -moz-box-align: center;
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;
}

.align-items-start {
  -webkit-box-align: start;
  -moz-box-align: start;
  -ms-flex-align: start;
  -webkit-align-items: flex-start;
  align-items: flex-start;
}

.align-items-end {
  -webkit-box-align: end;
  -moz-box-align: end;
  -ms-flex-align: end;
  -webkit-align-items: flex-end;
  align-items: flex-end;
}

.text-center {
  text-align: center;
}

.ff-font-w-b {
  font-weight: bold;
}