/* Body styling */

body {
  font-family: Arial, sans-serif;
  background-color: #18b6dd;
  color: #333;
  line-height: 1.6;
}
.p1 {
  text-align: center;
  font-size: 3em;
}
/* Header styling */
header {
  position: fixed;
  top: 0px;
  width: 100%;
  background: linear-gradient(90deg, #3b19b4, #3d128f);
  color: rgb(247, 251, 4);

  text-align: center;
}

main {
  padding-top: 240px;
  background-color: #18b6dd;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}
h1 {
  text-align: center;
  font-size: 45px;
  text-decoration: underline;
}
h5 {
  text-align: center;
  font-size: 45px;
}
h6 {
  line-height: 10px;
  text-align: center;
  font-size: 35px;
  text-decoration: underline;
}

/* Navigation menu */
nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  background-color: #aec709;
}

nav ul li {
  margin: 0;
}

nav ul li a {
  display: block;
  padding: 14px 20px;
  color: rgb(24, 13, 223);
  text-decoration: none;
  transition: background 0.3s;
}

nav ul li a:hover {
  color: rgb(24, 24, 144);
  background-color: #4caf50;
}

ul.blue-list {
  color: blue;
}

div.BlueDiv {
  color: blue;
}

.pcv {
  text-decoration: none;
  border: 2px solid black;
  padding: 10px;
}

iframe {
  background-color: skyblue;
  width: 80%;
  height: 600px;
}

/* Main content */

/* Responsive design */
@media (max-width: 600px) {
  nav ul {
    flex-direction: column;
  }
}