body {
font-family: Arial, sans-serif;
margin: 0;
padding: 0;
}
header {
background-color: #333;
color: #fff;
display: flex;
justify-content: space-between;
align-items: center;
padding: 20px;
header h1 {
header nav ul {
list-style: none;
header nav li {
margin-left: 20px;
header nav a {
text-decoration: none;