.runner {
    position: fixed;
    right: 20px;
    top: 50px;
    background: white;
    border-radius: 4px;
    border: 1px solid #aaa;
    padding: .2em;
}

.runner .header {
    height: 20px;
    background: #ccc;
    border: 1px solid #aaa;
    border-radius: 4px;
}

.runner .header button {
    float: right;
    width: 20px;
    height: 20px;
    padding: 0;
    font-size: 10px;
}

.runner.hidden {
    right: -10000px;
    top: -10000px;
}

.runner iframe {
    border: none;
}