.preview-links-bar a {
    color: #fff;
    background: #369;
    padding: 10px 15px;
    border-radius: 20px;
    border: 2px solid #fff;
}
.preview-links-bar a:hover {
    color:#369;
    background:#fff;
}
.preview-links-bar {
    width: 100%;
    margin: 0 auto;
    background: #000;
    padding: 20px;
    position: fixed;
    top: 0;
    z-index: 33333;
    text-align: center;
}