body {
    margin: 0 auto;
    max-width: 700px;
    min-width: 0;
    padding: 0 10px 25px;
    font-family: "Helvetica", "Ariel", sans-serif;
}

h2 {
    margin-top: 1em;
    padding-top: 1em;
}
nav a {
    margin-left: 20px;
}

body {
    color: #444;
}
h1, h2, strong {
    color: #222;
}

header {
    margin: 0px;
    font-size: 23px;
}
article {
    font-size: 18px
    letter-spacing: 1px;
}
h1 {
    font-size: 26px;
}
h2 {
    font-size: 23px;
}

a {
    color: #ffa64d;
}

body {
    display: grid;
    row-gap: 5px;
    grid-template-columns: auto auto;
    grid-template-rows: 60px auto;
    grid-template-areas:
        "header nav"
        "ct ct"
}

header {
    grid-area: header;
    justify-self: left;
    align-self: end;
}
nav {
    grid-area: nav;
    justify-self: right;
    align-self: end;
}
nav a {
    text-align: right;
}
article {
    grid-area: ct;
    border-top: 2px solid gray;
}

@media screen and (max-width: 430px) {
  body {
    grid-template-columns: auto;
    grid-template-rows: minmax(40px, auto) minmax(30px, auto) auto auto;
    grid-template-areas:
    "header"
    "nav"
    "ct"
  }
  header, nav {
    text-align: center;
    justify-self: center;
  }
  nav a {
    margin: 0 10px;
  }
}