body {
    font-family: sans-serif;
}

#log {
    white-space: pre-wrap;
    background: #f0f0f0;
    padding: 1em;
    border-radius: 8px;
    height: 600px;
    overflow-y: auto;
    margin-top: 1em;
}

label,
input {
    font-size: 1rem;
}

input {
    margin-left: 0.5em;
}

button {
    margin-left: 1em;
}