.melhor-envio-loading{opacity:.6;pointer-events:none;position:relative}.melhor-envio-loading::after{content:'';position:absolute;top:50%;left:50%;width:24px;height:24px;margin:-12px 0 0 -12px;border:3px solid #f3f3f3;border-top:3px solid #3498db;border-radius:50%;animation:melhor-envio-spin 0.8s linear infinite}@keyframes melhor-envio-spin{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}