img { 
    height: 200px;
}
body{
    background-image: url("https://unblast.com/wp-content/uploads/2021/01/Space-Background-Images.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
}
nav{
    background-color:rgba(246, 243, 225, 0.8);
    text-align: center;
    border: 7px solid rgb(231, 238, 241,0.5);
    margin-bottom: 10px;
    border-radius: 6px;
    position: fixed;
    margin-right: 10px;
    right:0;
}
.title{
    text-align: center;
    font-family:Verdana, Geneva, Tahoma, sans-serif;
    color:rgb(235, 233, 238);
    font-size:15px;
    padding:6px;
    border-bottom: 3px rgb(187, 187, 249) dotted;
 
}
.intro{
    text-align: center;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    color: white;
    background-color: rgb(9, 29, 47,0.5);
    padding:10px;
    border-radius:6px;
}
.text{
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    color:aliceblue;
    padding:10px;
    border-radius:6px;
    background-color: rgba(4, 17, 30, 0.5);
}