html {
  font-family: "Arimo", sans-serif;
  background-color: rgb(242, 242, 242);
}
body {
    width: 600px;
    margin: 0 auto;
    background-color: whitesmoke;
    padding: 0 20px 20px 20px;
    border: 1px solid black;
}
h1 {
    text-align: center;
    margin: 0;
    padding: 20px 0;
}
h2 {
    text-align: center;
}
h3 {
    text-align: center;
}
p {
    line-height: 0.95;
}
a {
    text-align: center;
}