.flex_center {
    display: flex;
    justify-content: center;
    align-items: center;
}
.flex_between {
    display: flex;
    justify-content: space-between;
}
.flex_between_center {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.flex_start_center {
    display: flex;
    justify-content: flex-start;
    align-items: center;
}
.flex_between_start {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}
.flex_column{
    display: flex;
    flex-direction: column;
}
.flex_column_center{
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.flex_column_between_center {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
}