html, body {
  position: relative;
  height: 100%;
  font-family: 'Open Sans', sans-serif;
  font-family: 'Open Sans', sans-serif;
  font-weight: 300;
  padding: 0;
  margin: 0;
  background-color: #fff; }

.cf:after {
  content: ".";
  display: block;
  height: 0;
  clear: both;
  visibility: hidden; }