body{
    background-image: url(https://www.universetoday.com/wp-content/uploads/2010/01/horizonmoon_nasa.jpg);
    background-size: cover;
    background-repeat: no-repeat;
    text-align: center;
    color: blue;
}
a{
color: rgb(8, 8, 131);
}
a:hover{
    color:aliceblue ;
}