.flex-container-row
{
  display:flex;
  flex-direction:row;
}

.flex-container-column 
{
  display: flex;
  flex-direction: column;
}

.flex-item
{
  display:flex;
}

.flex-item-1
{
  flex:1;
}

.flex-item-2 
{
  flex: 2;
}