.flex
{
  display: flex;
}
.flex-row
{
  flex-direction: row;
}
.flex-column
{
  flex-direction: column;
}
.flex-wrap
{
  flex-wrap: wrap;
}
.flex-nowrap
{
  flex-wrap: nowrap;
}
.flex-wrap-wrap
{
  flex-wrap: wrap;
}
.flex-wrap-nowrap
{
  flex-wrap: nowrap;
}
.flex-justify-content-space-between
{
  justify-content: space-between;
}
.flex-justify-content-flex-start
{
  justify-content: flex-start;
}
.flex-justify-content-flex-end
{
  justify-content: flex-end;
}
.flex-align-items-center
{
  align-items: center;
}