body {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-direction: column;
      flex-direction: column;
}
.main {
  background: url('');
  -ms-flex: 1 1 100%;
      flex: 1 1 100%;
}
.headerImage {
  margin-bottom: 3em;
}
.headerImage img {
  max-width: 100vw;
  display: block;
  margin: 0 auto;
}
.vid {
  max-width: 900px;
  margin: 0 auto;
  margin-bottom: 3em;
}
@media (min-width: 300px) and (max-width: 800px) {
  .vid {
    max-width: 80vw;
  }
}
.callout {
  margin-top: 3em;
  margin-bottom: 5em;
}
.callout img {
  display: block;
  margin: 0 auto;
  max-width: 80vw;
}