body {

}
h1 { color: darkblue;}
.in {
    width: 100%; background-color: green; color: white;
}

.out {
    width: 100%; background-color: red; color: white;
}

.empty {
    width: 100%; background-color: lightgray;
}

.very-small {
    font-size: 8px;
}