body {
background-color: black;
color: white;
font-family: Arial;
margin: 20px;
}

h1 {
color: orange;
text-align: center;
}

h2 {
color: yellow;
}

nav {
background-color: grey;
padding: 10px;
text-align: center;
}

nav a {
color: white;
margin: 10px;
text-decoration: none;
}

nav a:hover {
text-decoration: underline;
}

img {
width: 400px;
border: 2px solid orange;
}

table {
background-color: darkblue;
border: 1px solid white;
border-collapse: collapse;
}

th, td {
border: 1px solid white;
padding: 5px;
}

button {
background-color: orange;
color: black;
padding: 5px 10px;
margin: 5px;
}

ul, ol {
background-color: darkgrey;
padding: 10px;
}