.img-fish-container {
    position: absolute;
    width: 100%;
    height: 100%;
}

.fish {
    position: absolute;
    top: 50%;
    left: 50%;
    max-width: 100%; /* 可以根据需要调整大小 */
    transform: translate(-50%, -50%);
    animation: rotate 100s linear infinite;
}

@keyframes rotate {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}