*{
    padding: 0px;
    margin: 0px;
    box-sizing: border-box;
}
body{
    background-color: rgb(99, 42, 164);
}
header > h1 {
    background-color: brown;
    text-align: center;
    border: 2px solid brown;
    border-style: solid;
    width: 5px;
}
nav > ul{
    max-width: 600px;
    margin: 10px auto;
    display: flex;
    list-style-type: none;
    justify-content: center;
    gap: 50px;
}
nav > ul > li > a{
    color:black;
    padding: 10px 20px;
    display: block;
    border-radius: 15px;
    border: black solid 3px;
    box-shadow: balck 10px 6px;
}
nav > ul > li > a:link{
    background-color: yellow;

}
nav > ul > li > a:visited {
    background-color: red;
}
nav > ul > li > a:hover {
    background-color: green;
}
nav > ul > li > a:active{
    color: white;
    background-color: grey;
    box-shadow: black 1px 1px;
}
main > ul{
    list-style-type: none;
    list-style-type: circle;
}
ol{
    list-style-type: upper-roman;
    list-style-type: lower-alpha;
}
main{
    background-color:darkgreen;
}