public/javascripts/showLoading/css/showLoading.css
.loading-indicator {
height: 80px;
width: 80px;
background: url( '../images/loading.gif' );
background-repeat: no-repeat;
background-position: center center;
}
.loading-indicator-overlay {
background-color: #FFFFFF;
background-color: transparent;
opacity: 0.6;
filter: alpha(opacity = 60);
}