* {
    margin: 0;
    padding: 0;
}

body {
    overflow: hidden;
    height: 100vh;
}

.logo {
    font-family: "Montserrat", sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    font-size: 50px;
}

span {
    height: 50px;
    width: 50px;
    border-radius: 50px;
    position: absolute;
    pointer-events: none;
    background: #55b9f3;
    box-shadow: 20px 20px 60px #489dcf, -20px -20px 60px #62d5ff;
    transform: translate(-50%, -50%);
    animation: blow 4s linear infinite;
}

@keyframes blow {
    0% {
        transform: translate(-50%, -50%);
        opacity: 1;
        filter: hue-rotate(0deg);
    }
    100% {
        transform: translate(-50%, -1000%);
        opacity: 0;
        filter: hue-rotate(720deg);
    }
}