.loading {
    position: fixed;
    width: 99vw;
    height: 100vh;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0, 0, 0, 0.85);
}

.bg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.sp {
    position: absolute;
    top: 50%;
    left: 50%;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translate(-50%, -50%) translatey(20px) rotate(5deg);
    }
    50% {
        transform: translate(-50%, -50%) translatey(-20px) rotate(-5deg);
    }
    100% {
        transform: translate(-50%, -50%) translatey(20px) rotate(5deg);
    }
}