.reveal.visible .whatsapp-body .wa-bubble:nth-child(13){animation-delay:7.5s}.reveal.visible .whatsapp-body .wa-bubble:nth-child(14){animation-delay:8.1s}.reveal.visible .whatsapp-body .wa-bubble:nth-child(15){animation-delay:8.7s}.reveal.visible .whatsapp-body .wa-bubble:nth-child(16){animation-delay:9.3s}