body{
    margin: auto;
    color: white;
    background-color: black;
}
header{
    background-color:yellow;
    border-bottom: 4px solid cyan;
    padding: 30px;
    color: black;
    text-align: center;
}
main{
    width: 1200px;
    margin: auto;
}
li>a{
    color:black;
    text-decoration: none;
}
a{
    color:cyan;
}
h2{
    color:yellow;
}
strong{
    color:lemonchiffon
}
li{
    display:inline-block;
    width: 20%;
    text-align:center;
}
li:hover{
    background-color:gold;
}
ol{
    padding: 0px;
}