[Résolu] Animation figée

hello, mon animation est figée, il doit y avoir des erreurs, encore merci

/* The animation code */
@keyframes #site {
from {background-color: red;}
to {background-color: yellow;}
}

/* The element to apply the animation to */
#site {
width: 100px;
height: 50px;
background-color: red;
animation-name: #site;
animation-duration: 4s;
}