.concert{
    position: absolute;
    padding-top: 10px;
    left: 0%;
    top: 0%;
    width: 100%;
    height: 100%;
}
.entrance{
    left: 50%;
    transform: translate(-50%, 0%);
    top: 59%;
}
.accessibility{
    left: 15.8%;
    top: 65.6%;
}
.vn{
    left: 72.3%;
    top: 65.1%;
}