svg {
    height: 30vh;
    padding: 0 40px 0;
}


@media (max-width: 936px) {
    svg {
        padding: 0 0  50px;
    }
}
@media (min-width:1500px) {
    svg {
        height: 400px;
    }
}

#envelope {
    animation: float 2s ease-in-out infinite;
}

#star1, #star2, #star3, #star4, #star5, #star6 {
    animation: blink 1s ease-in-out infinite;
}

#star2 {
    animation-delay: 100ms;
}

#star3 {
    animation-delay: 500ms;
}

#star4 {
    animation-delay: 700ms;
}

#star5 {
    animation-delay: 300ms;
}

#star6 {
    animation-delay: 200ms
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }

    100% {
        transform: translateY(0px);
    }
}

@keyframes blink {
    0% {
        opacity: 0;
    }

    50% {
        opacity: .5;
    }

    100% {
        opacity: 1;
    }
}