Design.css

* {
    margin : 0;
    padding: 0;
    box-sizing: border-box;
    perspective: 1000;
    font-family: sans-serif, Arial, Helvetica, sans-serif;

}

#base {
    display: flex;
    background : lightblue;
}

#back {

    width: 20px;
    height: 20px;
    position: absolute;
    left: 4px;
    top: 20px;
}



#flight_Info {
    width: 250px;
    height: 80px;
    left: 10px;
    top: 70px;
}


#header{
    width: 300px;
    height: 40px;
    z-index: auto;
    text-align: center;
    font-size: larger;
    font-family:'Times New Roman', Times, serif;
}

#departure{
    width: 50px;
    height: 30px;
    z-index: auto;
    left: 10px;
    top: 70px;
    font-size: larger;
    font-family:'Times New Roman', Times;
}

#hyphen_oneway
{
    width: 10px;
    height: 5px;
    z-index: auto;
    left: 65px;
    top: 70px;
    font-size: larger;
    font-family:'Times New Roman', Times;
}

#hyphen_roundtrip
{
    width: 10px;
    height: 5px;
    z-index: auto;
    left: 65px;
    top: 70px;
    font-size: larger;
    font-family:'Times New Roman', Times;
}


#arrival{
    width: 50px;
    height: 30px;
    z-index: auto;
    left: 80px;
    top: 70px;
    font-size: larger;
    font-family:'Times New Roman', Times;
}

#showDepartureDate{
    width: 50px;
    height: 30px;
    z-index: auto;

    

}

#showArrivalDate {
    width: 50px;
    height: 30px;
    z-index: auto;


}

#showPeople{
    width: 30px;
    height: 30px;
    z-index: auto;
    
}

#BoardingPassContainer{
    position: relative;
    width: 400px;
    height: 100px;
    margin: 10px;

}

#firstDisplay {          /*펼쳤을 때 출발지, 도착지가 보이는 구간*/
    width: 100%;
    height: 100px;
    position: absolute;
    background: #fff;
    border-radius: 8px;
    display: flex;
    flex-direction: row;   /*flex 항목이 주 축과의 방향 배치*/
    justify-content: space-between; /*flex 사이의 주변공간*/
    padding: 18px 23px;
    flex-wrap: wrap;      /*flex 항목이 한 줄로 or 여러 줄로*/
    backface-visibility: hidden;  /*뒷면이 보이는지 안보이는지*/
    box-shadow: 0px 0px 25px -1px rgba(0, 0, 0, 0.1); /**/
  }