*{
    margin: 0;
    padding: 0;
    outline: none;
    border: none;
    text-decoration: none;
    list-style-type: none;

    position: relative;
    box-sizing: border-box;
}

body{
    height: 100svh;
    max-width: 100svw;
    background-image: linear-gradient(#ff9700, red, black);
    display: flex;
    justify-content: center;
    align-items: center;

    overflow: hidden;
}
div{
    width: 150px;
    height: 150px;
    background-color: #fff600;
    border-radius: 50%;
    box-shadow: 0px 0px 15px 15px #fff600;

    animation-name: sunrise;
    animation-duration: 5s;
    animation-iteration-count: infinite;
    animation-timing-function: linear;
}


@keyframes sunrise{
    0%{
        transform: translateY(0px);
    }
    50%{
        transform: translateY(350px);
        box-shadow: 0px 0px 5px 2px #fff600;
    }
    100%{
        transform: translateY(0px);
    }
}