.row{
    display: flex;
}
.tile{
    height: min(12vh,15vw);
    width: min(12vh,15vw);
    background-color: #444;
    margin: 2px;
}
.lighting{
    background-color: #f00;
}
.inner-frame{
    background-color: #fff;
}
.content-h-center{
    display: flex;
    justify-content: center;
}
.rule-title-font-size{
  font-size: calc(7.8px + 1.3vw);
}
.rule-font-size{
  font-size: calc(7.2px + 1.2vw);
}
.upper-hint-margin{
    margin: 5vh;
}
.bottom-hint-margin{
    margin: 5vh;
}
.nodisplay{
    display:none;
}
.hint-area{
    height: 20vh;
}