body {
  background-image: url('grass.png');
  background-repeat: repeat;
  color: Teal;
  font-family: Verdana;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

div {
  width: 500px;
  border: 10px solid #50b224;
  background-color: #e0f8cf;
  margin: 15px auto;
  padding: 15px;
  border-radius: 30px;
  box-shadow: 5px 5px 10px rgba(0, 0, 0, 0.3);
  overflow:auto;
  opacity: 1;
}

h1 {
  color: #50b224;
  text-align: center;
}

p {
  color: #50b224;
  font-size: 1em;
}
div img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: auto;
  width: auto;
}
div iframe {
  max-width: 100%;
  max-height: 100%;
  display: block;
}