:root {
    color-scheme: dark;
}

body {
    padding: 0;
    margin: 0;
    font-family: monospace;
	background-color: #000000;
    color: #00FF00;
    line-height: 1em;
    text-align: center;
    height: 100svh;
}

#outermost {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

div > div > div, button {
    white-space: pre;
    user-select: none;
}

button {
    background: none;
    color: inherit;
    border: none;
    padding: 0;
    font: inherit;
    outline: inherit;
    cursor: default;
}

button:hover {
    background-color: #004b01;
    cursor: pointer;
}

button:focus {
    background-color: #004b01;
}

button:active {
    background-color: #003001;
}