body,
html {
    margin: 0;
    height: 100%;
    width: 100%;
    overflow: hidden;
    position: relative;
    background: -webkit-radial-gradient(center, #000046 0%, #000 60%);
}

::after,
::before {
    content: " ";
    display: block;
}

::after,
::before,
.moon,
.sky,
.star,
.asteroid {
    position: absolute;
}

.moon {
    color: #ffd;
    background: radial-gradient(circle at -30% 50%, rgba(0, 0, 0, 0) 175px, currentColor 100%);
    z-index: 999;
    border-radius: 50%;
    height: 200px;
    width: 200px;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    filter: drop-shadow(0 0 20px currentColor);
}

.sky {
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    animation: rotate 400s infinite linear;
}

.star {
    width: 3px;
    height: 3px;
    background-color: white;
    border-radius: 50%;
    animation: shine 800s infinite linear;
}

    .star.scale1 {
        transform: scale(1);
    }

    .star.scale2 {
        transform: scale(0.5);
    }

    .star.scale3 {
        transform: scale(1.3);
    }

    .star.animate1 {
        animation-duration: 0.5s;
    }

    .star.animate2 {
        animation-duration: 1s;
    }

    .star.animate3 {
        animation-duration: 1.5s;
    }

    .star.animate4 {
        animation-duration: 2s;
    }

    .star.opacity1 {
        opacity: 1;
    }

    .star.opacity2 {
        opacity: 0.5;
    }

    .star.opacity3 {
        opacity: 0.2;
    }

.asteroid {
    top: -200px;
    left: -200px;
    width: 200px;
    height: 200px;
    opacity: 0.8;
    animation-name: assteroid;
    animation-timing-function: linease-inear;
    animation-iteration-count: infinite;
    animation-duration: 7s;
    animation-delay: 2s;
}

    .asteroid:before {
        width: 10px;
        height: 10px;
        background: #fff;
        -webkit-border-radius: 50%;
        -moz-border-radius: 50%;
        border-radius: 50%;
        -moz-background-clip: padding;
        -webkit-background-clip: padding-box;
        background-clip: padding-box;
        -webkit-box-shadow: 0px 0px 7px 2px #fff;
        -moz-box-shadow: 0px 0px 7px 2px #fff;
        box-shadow: 0px 0px 7px 2px #fff;
        bottom: 0;
        right: 0;
    }

    .asteroid:after {
        width: 0;
        height: 0;
        border-left: 3px solid transparent;
        border-bottom: 200px solid #fff;
        border-right: 3px solid transparent;
        bottom: -22px;
        right: 75px;
        -webkit-transform: rotate(-45deg);
        -moz-transform: rotate(-45deg);
        transform: rotate(-45deg);
        -o-transform: rotate(-45deg);
        filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=-1deg);
    }

@keyframes shine {
    0% {
        box-shadow: 0 0 15px 0px rgba(255, 255, 255, 0.05);
    }

    50% {
        box-shadow: 0 0 15px 4px rgba(255, 255, 255, 0.4);
    }

    100% {
        box-shadow: 0 0 15px 0px rgba(255, 255, 255, 0.05);
    }
}

@-webkit-keyframes shine {
    0% {
        box-shadow: 0 0 15px 0px rgba(255, 255, 255, 0.05);
    }

    50% {
        box-shadow: 0 0 15px 4px rgba(255, 255, 255, 0.4);
    }

    100% {
        box-shadow: 0 0 15px 0px rgba(255, 255, 255, 0.05);
    }
}

@keyframes rotate {
    0% {
        -webkit-transform: rotate(0deg);
    }

    100% {
        -webkit-transform: rotate(360deg);
    }
}

@keyframes rotate {
    0% {
        -webkit-transform: rotate(0deg);
    }

    100% {
        -webkit-transform: rotate(360deg);
    }
}

@keyframes assteroid {
    0% {
        top: -200px;
        left: -200px;
        filter: alpha(opacity=80);
        opacity: 0.8;
    }

    10% {
        top: 200px;
        left: 200px;
        filter: alpha(opacity=0);
        opacity: 0;
    }

    100% {
        filter: alpha(opacity=0);
        opacity: 0;
    }
}

@-webkit-keyframes assteroid {
    0% {
        top: -200px;
        left: -200px;
        filter: alpha(opacity=80);
        opacity: 0.8;
    }

    10% {
        top: 200px;
        left: 200px;
        filter: alpha(opacity=0);
        opacity: 0;
    }

    100% {
        filter: alpha(opacity=0);
        opacity: 0;
    }
}