.ajax-throbber {
    margin: 0;
    width: 40px;
    height: 40px;
    position: absolute !important;
}

.ajax-progress-throbber,
.views-admin .ajax-progress-throbber {
    background: none;
    margin: 0;
    width: 40px;
    height: 40px;
    position: absolute !important;
}