body{
font-family:Arial, sans-serif;
margin:0;
background:#f4f4f4;
color:#333;
text-align:center;
}

.top{
background:black;
color:white;
padding:20px;
}

nav a{
margin:10px;
color:white;
text-decoration:none;
}

.hero{
padding:80px 20px;
background:white;
}

.btn{
display:inline-block;
background:black;
color:white;
padding:10px 20px;
margin-top:20px;
text-decoration:none;
border-radius:5px;
}

footer{
background:black;
color:white;
padding:20px;
margin-top:40px;
}