/* #mona-date::-webkit-inner-spin-button {
    display: none;
    -webkit-appearance: none;
}
#mona-date::-webkit-calendar-picker-indicator {
    background: transparent;
    bottom: 0;
    color: transparent;
    cursor: pointer;
    height: auto;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    width: auto;
}
#mona-date{
    position: relative;
    background: url(../images/calendar.svg) right 25px center / 16px no-repeat;
    padding-right: 45px;
} */
.introduce-wrap .columns{
    justify-content: center;
}
.introduce-wrap .column:nth-child(3n + 0){
    border-right: 0;
}
.introduce-wrap .column:nth-child(n + 4){
    margin-top: 45px;
}
@media only screen and (max-width : 768px){
    .introduce-wrap .column:nth-child(n + 4){
        margin-top: 0;
    }
}