html, body {
    text-align: center;
    font-family: 'Avenir Next', 'Helvetica', 'Arial', sans-serif;
  }

  html,body,li,form,ul {
    padding: 0;
    margin: 0;
  }

  form {
    padding-bottom: 2%;
  }

  li {
    list-style: none;
    width: 100vw;
  }

  li:nth-child(odd) {
    background: #eee;
  }