*{
    margin:0;
    padding:0;
}
html,body{
    widows: 100%;
    height: 100%;
    font-size: 10px;
    background-color:#000;
    overflow: hidden;
}
.wrapper{
    position: relative;
    width:100%;
    height: 100%;
}
.wrapper .moon{
    position: absolute;
    left: 80%;
    top:5rem;
    width:15rem;
    height: 15rem;
    background-color:#fff;
    border-radius:10rem;
    box-shadow: 0 0 1rem .4rem rgba(255, 255, 255, 1);
    animation:rise 15s linear;
    z-index: 999;
}
@keyframes rise{
    0%{
        left:0%;
        top:60rem;
        opacity: .1;
        box-shadow: 0 0 1rem 0 rgba(255, 255, 255, .1);
    }
    50%{
        left:40%;
        top:30rem;
        opacity: .5;
        box-shadow: 0 0 1rem .2rem rgba(255, 255, 255, .5);
    }
    80%{
        left: 80%;
        top:5rem;
        opacity: 1;
        box-shadow: 0 0 1rem .4rem rgba(255, 255, 255, 1);
    }
}