.flex-center{
    display: flex;
    align-content: center;
    justify-content: center;
    align-items: center;
}

.flex-end{
    display: flex;
    justify-content: flex-end;
    align-items: flex-end;
}
.flex-column{
  
    display: flex;
    flex-direction: column;
}

.flex-row{
  
    display: flex;
    flex-direction: row;
}
.flex-space-rd{
    justify-content: space-around;
  
}
.flex-space-bt{
    display: flex;
    justify-content: space-between;
    
}