fb.theme.css in Drupal for Facebook 7.3

/* Hide these classes, unless javascript shows them. */
.fb_show {display: none;}
.fb_connected, .fb_not_connected {display:none;}

/*
 * Make links look like facebook buttons.
 * If you can improve this, please submit patch to http://drupal.org/project/issues/fb
 */
.fb_button_style {
    display: inline-block;
    border: 1px solid #294473;
}

.fb_button_style a:link,
.fb_button_style a:visited,
.fb_button_style a {
    background:url(images/f_logo.png) center left no-repeat;
    background-size: 22px 22px;
    padding-left: 22px;
    display: inline-block;
    background-color: #5f78ab;
}

.fb_button_style a span {
    color: #fff;
    font-size: 12px;
    font-weight: bold;
    padding: 4px 4px;
}

.fb_button_style a div,
.fb_button_style a span {
    cursor: pointer;
}

/* Show spinner when reloading. */
.fb_spinner {
    background:url(images/fb_spinner.gif) center left no-repeat;
    position: fixed;
    top: 50%;
    left: 50%;
    margin-left: -50px; /* half width of the spinner gif */
    margin-top: -50px; /* half height of the spinner gif */
    z-index:9999;
    overflow: auto;
    width: 100px; /* width of the spinner gif */
    height: 102px; /*hight of the spinner gif +2px to fix IE8 issue */
}

/* Grey out entire page when reloading. */
#fb_reload {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background:grey;
    filter:alpha(Opacity=50);
    opacity:0.5;
    z-index:9998;
}