ul{
List-style-type: none;
margin: 0; 
padding: 0;
overflow: hidden; 
background-color: #333;
}

li{
float: left;
}

li a{
display: block; 
color: white;
padding: 15px 30px; 
text-decoration: none;
}

footer {
position: fixed;
Left: 0;
bottom: 0;
width: 100%;
background-color: firebrick;
color: white; 
text-align: center;
}