nav ul{
list-style:none; 
display:flex;
flex-wrap:wrap;
background-color:lightblue;
padding:20px;
}
nav a{
color:darkblue;
text-decoration:none;
margin:10px 150px;
border:2px solid darkblue;
padding:15px 30px;
font-size: large;
font-family:sans-serif;
}
main{
margin:20px 20px;
}