/*
     * Structure */
    html,
    body {
      height: 100%;
      background-color: #333;
      font-family: 'Fira Sans', sans-serif;
    }
    main {
      height: 100%;
    }
    h1 {
      font-family: 'Oswald', sans-serif;
      margin-bottom: 1.6rem;
    }
    /*
     * Footer */
    .mastfoot {
      color: rgba(255, 255, 255, .5);
    }