.preview-pane {
    position:fixed;
    width:100%;
    height:100%;
    background:#000;
    z-index: 999;
}

    .preview-pane-title {
        background:#fff;
        padding:10px;
        height:16px;
        overflow: hidden;
    }

    .preview-pane-content {
        margin-top:10px;
        background:#fff;
    }