body {
    height: 90vh;
}

.cardBox {
    position: relative;
    margin-top: 20px;
    margin-bottom: 20px;
    z-index: 0;
}
.card {
    display: block;
    border: 2px solid black;
    padding: 10px;
    background-color: white;
}
.card.main {
    max-width: min(250px, 75vw);
    border-radius: 20px;
}
.card.preview {
    max-width: min(125px, 40vw);
    border-radius: 10px;
}
.card.front {
    position: relative;
    z-index: 1;

    margin-left: auto;
    margin-right: auto;
}
.card.back {
    position: absolute;

    left: 50%;
    top: 0px;
    transform: translate(-50%, 0px);

    z-index: 0;
}

h2 {
    text-align: center;
}
h4 {
    text-decoration: underline;
}
h4, h5 {
    text-align: center;
    margin: 0px;
}

.chordMenu {
    border: 3px solid black;
    margin-left: auto;
    margin-right: auto;
    max-width: min(90vw, 350px);
    padding: 0px;
}

.selector {
    text-align: center;
    display: flex;
    flex-direction: column;
    margin-top: 20px;
    margin-bottom: 20px;
    padding: 0px;
}
.selectionItem {
    margin-left: auto;
    margin-right: auto;
}
input, select {
    font-size: 12pt;
}

#playButton {
    font-size: 12pt;
    padding: 10px;
    display: block;
    box-shadow: none;
    border: 1px solid black;
    color: white;
    background-image: linear-gradient(rgb(42, 150, 186), rgb(0, 0, 138));
    margin-left: auto;
    margin-right: auto;
    border-radius: 10px;
}
#playButton.pressed {
    background-image: linear-gradient(rgb(0, 0, 138), rgb(42, 150, 186))
}
.metControls {
    margin-top: 0px;
    display: block;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.card.flash {
    border: 12px solid rgb(0, 195, 0);
    padding: 0px;
}
.card.downbeat {
    border: 12px solid red;
    padding: 0px;
}

.subMenu {
    margin-top: 10px;
    margin-bottom: 10px;
}