Center position for buttons?

You need to use this css in the file wti_like_post.css present inside css folder of our plugin

.watch-action .watch-position {
    margin: auto;
    width: 100px;
}

and remove this css

.align-left {
    float: left;
}

Please note the above width will be for showing the buttons with like counts. You will have to adjust it to show the loader and message.