body, h2 { margin: 0; }

body {
  padding: 0 20% 1000px;
  background: #FFFFFF;
  font: 1.2rem sans-serif;
}

.content {
  margin: 50px 0;
  padding: 20px;
  background: #D9E8F5;
  border: 10px solid #304269;
}

.sticky {
  padding: 10px;
  border: 10px solid rgba(0,0,0,0.3);
  background: #304269;
  color: #FFFFFF;
}

.float--left  { float: left;  margin-right: 15px; }
.float--right { float: right; margin-left: 15px;  }

.float--left  + p,
.float--right + p { margin-top: 0; }