body {
   font-family: Arial, sans-serif;
   margin: 0;
   padding: 0;
   background-color: #f0f0f0;

}
header {
    background-color: #7f1e20;
    color: #fff
    text-align: center;
    padding: 20px;
}
 nav ul {
    list-style: none;
    padding: 0;
    background-color: #333;
    text-align: center;
 }