style.css

/* Reset default styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Global styles */
body {
  font-family: Arial, sans-serif;
  line-height: 1.4;
}

header {
  background-color: #333;
  color: #fff;
  padding: 20px;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  background-color: #f4f4f4;
  padding: 10px;
}

nav ul li {
  margin: 0 10px;
}

nav ul li a {
  text-decoration: none;
  color: #333;
}

main {
  max-width: 960px;
  margin: 20px auto;
  padding: 0 20px;
}

section {
  margin-bottom: 40px;
}

section h2 {
  margin-bottom: 10px;
}

.cta-button {
  display: inline-block;
  background-color: #333;
  color: #fff;
  padding: 10px 20px;
  text-decoration: none;
  border-radius: 4px;
}

.course {
  margin-bottom: 20px;
}

.course img {
  width: 100%;
}

footer {
  background-color: #333;
  color: #fff;
  padding: 20px;
  text-align: center;
}