navsty.css

body {
  background-color: #666;
  font-family: "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif;
  font-weight:300;
  text-align: left;
  text-decoration: none;
  height: 500px;
}
header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  border-bottom: 1px solid #e3e3e8;
}
#logo {
  float: left;
  font-size: 3em;
  margin: 0;
  padding: .4em;
  text-decoration: none;
  color: red;
  border-right: 1px solid #e3e3e8;
  transition: .5s all;
}
#logo:hover {
  color: bloodyred;
  background-color: #333;
}
nav {
  float: center;
  background-color: white;
}
nav ul li a:hover{color: #fafafa;
  background-color: #666;
}
nav ul {
  list-style-type: none;
  margin: 0;
  padding: 2.2em 2em;
}
nav ul li {
  display: inline;
  padding: 60px ;
  margin: 70px ;
  
  
}
nav ul li a {
  color: #333;
  text-decoration: none;
  text-transform: uppercase;
  font-size: 1.6em;
 
  transition: .5s color;
}
nav ul:hover {
  border-bottom: 3px solid #333;
}