body{
    background: #1c1c1c;
    color: grey;
}
h1{
    text-align: center;
}
.img-s{
    width: 25%;
    height: 25%;
    display: block;
    margin: auto;
}
p{
    text-align: center;
}
pre{
text-align: center
}
a{
    color: lightblue;
}
#frame{
    text-align: center;
}