html, body {
 margin: 0;
 padding: 0;
 }
body {
 font-family: Verdana, sans-serif; 
 font-size: 12px;
 }
h1 {
 font-size: 36px; 
 text-align: center;
 }
h2 {
 font-size: 20px; 
 padding-left: 15px;
 }
p,ul,li {
 font-size: 12px; 
 }
td {
 font-size: 12px; 
 padding: 10;
 }
a:link {
 text-decoration: underline;
 }
a:visited {
 }
a:hover {
 color: green;
 text-decoration: none;
}
a:active, a:focus {
}

nav {   
    background-color: #444444;
    text-align: center;
    left:0;
    right:0;
    width: 100%;
    height: 50px;
    margin: 0;
    z-index: 99;
    position: relative;
}
 nav ul {
    padding:0;
    margin:0;
    list-style: none;
 }
 nav li {
    float:left;
    font-family: Verdana, sans-serif; 
    font-size: 13px;
    width:250px;
    position:relative;
 }
 nav a, nav div {
    display:block;
    text-decoration: none;
    color: white;
    padding: 18px 0
 }

nav a:link {
 text-decoration: none;
 }

nav a:hover {
 color: white;
 text-decoration: none;
}


nav li li a, nav li li div {
  color: white;
  text-decoration: none;
}
 nav div {
  cursor: pointer
 }
 nav li li {
    float:none;
 }
 nav li:hover {
    background-color: #444444;
 }
nav ul ul, nav li:hover ul ul {
    display:none;
    position:absolute;
    left:0;
     background-color: #444444;
}
nav li:hover ul {
    display:block;
}
nav li li:hover ul {
    display:block;
    left:200px;
    top:0;
}