h1{
    text-align: center;
    font-size: 2.5em;

}
h2{
    text-align: center;
    font-size: 2.5em;
}
nav{
    text-align: center;
    margin: auto;
}
footer{
    text-align: center;
    width: 100%;
}
body{color: red; background-color: aqua;}
body{margin: 10px}
body{font-family: arial sans-serif;}