body{
    font-family: Arial, Helvetica, sans-serif;
    margin:0;
    background:#f4f4f4;
}

header{
    background:#2c3e50;
    color:white;
    text-align:center;
    padding:20px;
}

nav{
    margin-top:10px;
}

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

nav a:hover{
    text-decoration:underline;
}

main{
    padding:30px;
    text-align:center;
}

section{
    max-width:800px;
    margin:auto;
}

img{
    margin:20px 0;
    border-radius:8px;
}

ul{
    text-align:left;
    max-width:500px;
    margin:auto;
}

footer{
    background:#2c3e50;
    color:white;
    text-align:center;
    padding:15px;
    margin-top:40px;
}