.flower {
    position: fixed; 
    top: 100%;
    font-size: 30px;
    z-index: 9999;
    animation-name: subir;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
}

/* Animação para o girassol subir */
@keyframes subir {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(-120vh);
    }
}