body{
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background-color: #fafafa;
}
header{
    text-align: center;
    padding: 20px;
    background-color: #f8f8f8;
}
header h1{
    margin: 0;
    letter-spacing: 2px;
}
header p{
    color: grey;
}
nav{ 
background-color: white;
border-top: 1px solid #ccc;
border-bottom: 1px solid #ccc;
}
nav ul{
    list-style: none;
    display: flex;
    justify-content: center;
    padding: 0;
    margin: 0;
}
nav li{
    margin: 10px 20px;
}
nav a{
    text-decoration: none;
    color: black;
}
main{
    width: 60%;
    margin: 40px auto;
    background-color: white;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
h2{
    color: teal;
}
ol{
    margin-top: 20px;
}
.banner{
width: 100%;
max-height: 300px;
object-fit: cover;
object-position: 50% 25%;
}