body {
  color: #333;
  font: 400 20px/1.5 'Source Sans Pro',Open Sans,Roboto,'San Francisco',Helvetica,Arial,sans-serif;
}

h1, h2 {
  margin-top: 40px;
  margin-bottom: 20px;
}

.content {
  min-height: 66vh;
}

.iframe-container {
  overflow: hidden;
  /* 16:9 aspect ratio */
  padding-top: 56.25%;
  position: relative;
}

.iframe-container iframe {
   border: 0;
   height: 100%;
   left: 0;
   position: absolute;
   top: 0;
   width: 100%;
}