body {
  color: #666;
  font-family: Arial;
  line-height: 1.5em; }

.heading, h1, h2 {
  font-family: Georgia; }

h1 {
  color: #6170E0; }

h2 {
  color: #E99F16; }

nav {
  background: #6170E0; }
  nav ul {
    display: flex;
    list-style-type: none;
    margin: 0;
    padding: 0;
    border-right: 2px solid #666; }
    nav ul li {
      flex: 1;
      border-left: 2px solid #666; }
      nav ul li a {
        display: block;
        padding: 20px 0;
        color: #fff;
        font-weight: bold;
        text-decoration: none;
        text-transform: uppercase;
        text-align: center; }
        nav ul li a:hover {
          background: #E99F16; }

.centered {
  display: block;
  margin-bottom: 20px;
  margin-left: auto;
  margin-right: auto; }

section {
  padding: 20px;
  margin-bottom: 20px;
  border: 3px solid #6170E0;
  -moz-border-radius: 20px;
  -webkit-border-radius: 20px;
  -ms-border-radius: 20px;
  -o-border-radius: 20px;
  border-radius: 20px; }
  @media (min-width: 700px) {
    section {
      width: calc(50% - 15px);
      box-sizing: border-box; } }

@media (min-width: 700px) {
  .container {
    display: flex;
    justify-content: space-between; } }