.App-header {
  background-color: #eb9d5e;
  margin-left: 25%;
  margin-right: 25%;
  min-height: 20vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: calc(10px + 2vmin);
  color: black;
}

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen",
  "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue",
  sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}


html {
  font-family: 'Roboto', sans-serif;
  text-align: center;
  margin-left: 10%;
  margin-right: 10%;
  margin-top: 10%;
  margin-bottom: 10%;
}

h1 {
  font-size: 3em;
}

h2 {
  font-size: 2em;
}

h3 {
  font-size: 1.5em;
}

.img-div {
  margin: 20px;
}

img {
  width: 200px;
}

.primary_btn {
  background-color: #28a745;
  border: none;
  border-radius: 20px; /* very rounded */
  color: white;
  font-family: 'Roboto', sans-serif;
  font-size: 2.0em;
  margin: 0 0 1em 0;
  padding: 0.5em 0.7em 0.6em 0.7em;
}

button:hover {
  opacity: 0.8;
}

video {
  /* mirror the video */
  transform: rotateY(180deg);
  -webkit-transform:rotateY(180deg); /* Safari and Chrome */
  -moz-transform:rotateY(180deg); /* Firefox */
}

a {
  color: #6fa8dc;
  font-weight: 300;
  text-decoration: none;
}

a#viewSource {
  display: block;
  margin-bottom: 20%;
  border-top: 1px solid #999;
  padding: 1em 0 0 0;
}