body {
color: black; background: lightblue;
font-family: Sans Serif, sans-serif;
margin-left: 5%;
margin-right: 5%; 
}

nav {
font-size: 18pt;
line-height: 150%;
}

nav a {
font-weight: bold;
padding: 4px;
}

h1 {
color: red;
background-color: gray;
text-align: center;
}

ul {
list-style-type: none;
font-weight: bold;
}

li {
padding: 3px;
line-height: 120%;
}

footer {
font-size:  90%;
font-weight: bold;
}