body {
font-family: Arial, sans-serif;
margin: 0;
padding: 0;
}

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

nav {
background-color: #eee;
padding: 10px;
}

nav a {
color: #333;
display: inline-block;
font-size: 18px;
margin-right: 20px;
text-decoration: none;
}

nav a:hover {
color: #f00;
}

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

footer {
background-color: #333;
color: #fff;
padding: 20px;
text-align: center;
}
nav span{
font-size:25px;
color: red;
background-color: yellow;
}