img {
    width: 400px;
}


body {
    /* text-align: center; */
    font-family: 'Arial';
    background: rgb(42, 155, 155);
}

iframe {
    
    aspect-ratio: 16 / 9;
    width: 33%;
    height:100%;
    border-radius: 20px; 
    border-style: none;
}

nav ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  background-color: #333333;
  display: flex;
}

nav ul li a {
  display: block;
  color: white;
  padding: 14px 16px;
  text-decoration: none;
}

nav ul li a:hover {
  background-color: #111111;
}