body {
    background-color: black;
    text-align: center;
}

nav {
    width: 50%;
    margin-left: auto;
    margin-right: auto;
}

section {
    background-color: lightgrey;
    border: 5px solid grey;
    border-radius: 10px;
    vertical-align: middle;
    width: 50%;
    margin-left: auto;
    margin-right: auto;
    font-family: "Sriracha";
    font-size: large;
}

p {
    color: white;
    font-size: xx-large;
    font-family: "Gugi";
}

button {
    background-color: slategrey;
    color: black;
    font-family: "Fredoka One";
    font-size: large;
    border-radius: 5px;
}

#a, #b, #c, #d {
    margin: 10px;
}