style.css

/* Reset some default styles */
body, h1, h2, h3, p, ul, li, form {
  margin: 0;
  padding: 0;
}

/* Global styles */
body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  background-color: #f4f4f4;
  color: #333;
}

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

/* Header styles */
#header {
  background-color: #333;
  color: #fff;
  padding: 10px;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1;
}

#header #header-img {
  height: 50px;
}

#nav-bar ul {
  list-style-type: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#nav-bar .nav-link {
  color: #fff;
  text-decoration: none;
  margin-right: 10px;
  padding: 10px;
  transition: background-color 0.3s ease;
}

#nav-bar .nav-link:hover {
  background-color: #555;
}

/* Main section styles */
video#video {
  width: 100%;
  display: block;
  margin-top: 80px;
}

form#form {
  margin-top: 20px;
}

form#form label {
  display: block;
  margin-bottom: 10px;
  font-weight: bold;
}

form#form input[type="email"] {
  width: 100%;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 16px;
}

form#form input[type="submit"] {
  display: block;
  margin-top: 10px;
  padding: 10px 20px;
  background-color: #333;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
}

/* Sections styles */
section {
  padding: 40px 0;
  background-color: #fff;
}

section h2 {
  text-align: center;
  margin-bottom: 20px;
}

/* Media queries */
@media screen and (max-width: 768px) {
  #nav-bar ul {
    flex-direction: column;
    align-items: flex-start;
  }

  #nav-bar .nav-link {
    margin-bottom: 10px;
  }
}