:root {
  --page-background-color: rgb(238, 238, 238);
  --accent-color: rgb(27, 111, 27);
}

body {
  font-family: Verdana;
  background-color: var(--page-background-color);
  padding: 0 20px;
  max-width: 800px;
  margin: 40px auto;
  line-height: 1.4;
}

h1, h2, h3 { line-height: 1.1; }

h1 { font-size: 3rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

h1, h2, h3 {
  font-family: "courier"
}

a, a:visited {
  color: var(--accent-color);
}

dl { display: grid; grid-template-columns: 2fr 3fr; }
dt, dd { margin: 5px 10px; }

figure {
  margin: 0;
}
section {
  display: block;
  clear: both;
}