body {
  background-color: black;
  color: white;
  font-family: sans-serif;
  font-size: 2em;
  overflow-y: hidden;
}
button {
  background: white;
  color: black;
  border: none;
  padding: 1em 2em;
}
main {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}
button:hover {
  background: #ddd;
}
h1 {
  text-align: center;
  margin-top: 1em;
}
p {
  font-size: 3em;
  text-align: center;
}
#boxes {
  display: flex;
  justify-content: center;
  gap: 4em;
}
#video-container {
  opacity: 0.2;
  position: absolute;
  top: 0;
  left: 0;
  z-index: -1;
}
