:root {
    --small: 0.2rem;
}

body {
    background-color: hsl(166, 10%, 10%);
    color: green;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    font-size: 24px;
    margin: 0 auto;
    min-height: 98vh;
    min-width: 98vw;
    display: flex;
    flex-flow: column nowrap;
    align-items: center;
    justify-content: stretch;
}

a, a:hover, a:visited, a:active {
    color: inherit;
}

button, label, input {
    font-size: inherit;
}

main {
    flex: 2 0 auto;
    width: 100%;
    display: flex;
    flex-flow: column nowrap;
    align-items: center;
    justify-content: stretch;

    & #heading {
        max-height: min-content;
    }

    & #speed {
        font-size: 120px;
        flex: 2 0 auto;
        display: flex;
        flex-flow: column nowrap;
        align-items: center;
        justify-content: center;
    }
}

header, footer {
    flex: 1 0 auto;
    max-height: min-content;
    width: 100%;
}

header {
    display: flex;
    flex-flow: row nowrap;
    align-items: center;
    justify-content: stretch;
}

.unknown {
    color: red;
}

.item {
    margin: 0 auto;
    font-weight: bold;
}

#log {
    color: #666;
    width: 100%;

    & p {
        margin: 0;
        padding: 0;
    }
}