.animated-arrow { 
    animation: bounce_7775 2s ease infinite; 
    transform-origin: 50% 50%; 
} 
@keyframes bounce_7775 { 
    0% { transform:translateY(0) } 
    7.69231% { transform:translateY(0) } 
    15.38462% { transform:translateY(0) } 
    30.76923% { transform:translateY(-15px) } 
    38.46154% { transform:translateY(0) } 
    46.15385% { transform:translateY(-15px) } 
    61.53846% { transform:translateY(0) } 
    100% { transform:translateY(0) } 
}