body {
    font-family: sans-serif;
    line-height: 1.4;
}
button {
    border: 1px solid #333;
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-size: 100%;
    background-color: #eee;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
    border-radius: 0.25rem;
}