body {
  background-color: grey;
  margin: 0;
  padding: 0;
  padding-bottom: 200px;
  min-height: 100vh;
}

h1{
  text-align:center;
}

iframe {
  display: block;
  margin: 20px auto;
  max-width: 100%;
  width: 560px;
  height: 315px;
  border: none; /* Remove borda padrão */
}

@media (max-width: 560px) {
  iframe {
    width: 100%;
  }
}

img {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: auto;
  margin: 0;
  padding: 0;
  z-index: 1;
}