.loading-indicator {height: 80px;width: 80px;background: url( 'https://www.arcadebooster.org/demo/application/static/images/loading/loading_5_blue.gif' );background-repeat: no-repeat;background-position: center center;}.loading-indicator-overlay {background-color: #FFFFFF;opacity: 0.6;filter: alpha(opacity = 60);}