body{
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    /* background-color: rgb(195, 221, 228); */
    animation: sky 60s linear infinite;
}

.sun{
    position: relative;
    width: 10em;
    height: 10em;
    background-color: yellow;
    border-radius: 50%;
}

.sun::before{
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    filter: blur(60px);
    border-radius: 50%;
    background: radial-gradient(circle 3em at 50% 50%, white 1%, yellow 100%);
    width: 10em;
    height: 10em;
    animation: bersinar 5s linear infinite;
}

.moon{
    width: 10em;
    height: 10em;
    border-radius: 50%;
    background-color: black;
    position: absolute;
    left: calc(50% - 30em);
    animation: revolusiBulan 60s linear infinite;
}

@keyframes bersinar{
    0%{
        filter: blur(60px);
    }
    50%{
        filter: blur(40px);
    }
    100%{
        filter: blur(60px);
    }
}

@keyframes sky{
    0%{
        background-color:  rgb(87, 104, 108);
    }
    50%{
        background-color: black;
    }
    100%{
        background-color:  rgb(87, 104, 108);
    }
}

@keyframes revolusiBulan{
    0%{
        left: calc(50% - 30em);
    }
    51%{
        left: calc(50% - 5em);
    }
    100%{
        left: calc(50% + 30em - 10em);
    }
}