body {
   font-family: Arial, sans-serif;
   color: #333;
}

h1, h2, h3 {
   color: #0073aa;
   margin-bottom: 15px;
}

p {
   font-size: 16px;
   line-height: 1.6;
   margin-bottom: 20px;
}

.container {
   padding: 20px;
}

header {
   background-color: #f4f4f4;
}

.footer {
   color: #fff;
   background-color: #0073aa;
   padding: 10px;
   text-align: center;
}