body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #ffeef4;
  color: #333;
  text-align: center;
}
header {
  background: #d86b9a;
  color: white;
  padding: 30px 15px;
}
nav {
  background: white;
  padding: 15px;
}

nav a {
  text-decoration: none;
  color: #d86b9a;
  margin: 0 10px;
  font-weight: bold;
}
.box {
  max-width: 700px;
  margin: 20px auto;
  background: white;
  padding: 20px;
  border-radius: 15px;
}
img, iframe {
  width: 100%;
  border-radius: 12px;
  margin-bottom: 15px;
}

 
ul {
  text-align: left;
  display: inline-block;
}

@media (max-width: 600px) {
  .box {
    margin: 10px;
    padding: 15px;
  }

  h1 {
    font-size: 26px;
  }
}
 
@media (min-width: 800px) {
  body {
    background: #f8dce8;
  }

  .box {
    max-width: 900px;
    padding: 30px;
  }

  h1 {
    font-size: 40px;
  }

  nav a:hover {
    color: black;
  }
}