[data-tool-name="button"] > circle { fill: #333; }

body {
    background-color: #FAFAFA
}

#paper {
    margin: 0 auto;
}

.description {
    font-family: sans-serif;
    font-size: 14px;
    text-align: center;
}

.key {
    padding: 4px;
    border: 1px solid black;
    border-radius: 3px;
    display: inline-block;
    background-color: white;
}