/* element selector */
h1 {
  text-align: center;
  color: #0a5c90;
  margin-bottom: .3em;
}

/* class selector */
.section-head {
  color: #333;
  border-bottom: 2px solid #c0c0c0;
  padding-bottom: .2em;
  margin-top: 1.4em;
}

/* id selector */
#main {
  font-family: Arial, Helvetica, sans-serif;
  max-width: 720px;
  margin: auto;
  line-height: 1.5;
}

figure { text-align: center; margin: 1.2em 0; }
figcaption { font-size: .9em; color: #555; }