JS Fiddle Console CSS

js-fiddle-console.css

#console-log {
    position: fixed;
    bottom: 10px;
    left: 10px;
    right: 10px;
    padding: 10px;
    background-color: #eee;
    color: #777;
    font-family: sans-serif;
}

#console-log p {
    padding: 10px 0px;
    margin: 0px;
}

#console-log p:nth-child(n+2) {
    border-top: 1px solid #bbb;
}