body,
html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

#fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#loader {
    width: 150px;
    height: 150px;
    position: absolute;
    z-index: 2;
}

@keyframes fly-out {
    0% {
        opacity: 1;
        transform: scale(1);
    }

    100% {
        opacity: 0;
        transform: scale(3);
    }
}

.fly-out {
    animation: fly-out .5s forwards;
}

.circles {
    width: 150px;
    height: 150px;
    position: relative;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;

    >div {
        animation: growAndFade 3s infinite ease-out;
        background-color: #02A9BB;
        border-radius: 50%;
        height: 100%;
        opacity: 0;
        position: absolute;
        width: 100%;
    }

    .circle1 {
        animation-delay: 1s;
    }

    .circle2 {
        animation-delay: 2s;
    }

    .circle3 {
        animation-delay: 3s;
    }
}

@keyframes growAndFade {
    0% {
        opacity: .25;
        transform: scale(0);
    }

    100% {
        opacity: 0;
        transform: scale(1);
    }
}