headerbar box {
    background: #e1d98a;
}

button {
    min-width: 0;
}

label.exercise_type {
    padding: 10px;
    border-radius: 10px;
    font-weight: bold;
    color: white;
}

label.on-reading {
    background: red;
}

label.kun-reading {
    background: blue;
}

label.meaning {
    background: green;
}