* {
   box-sizing: border-box;
   }
nav {
    background-color: darkblue;
    position: sticky;
    width: 100%;
    top:0px;
    z-index: 5;
    margin: 0px 0px;
}
div.r0c0 {
    background-color: darkblue;
    position: absolute;
    width: 20%; 
    overflow: hidden;
    margin: 0px 0px;
    text-align: center;
    color: white;
    padding: 0px 0px;
    border-radius: 0px;
     font-family: Helvetica,  Tahoma, sans-serif;
    font-size: 24px;
    float: left;
 }
div.r0c1{
   background-color: darkblue;
   width: 60%; 
   overflow: hidden;
   margin: 0px auto;
   /*float: right;*/
   text-align: right;   
  }
   
div.r0c1  ul {
   font-family: Helvetica,  Tahoma, sans-serif;
   font-size: 24px;}
       
div.r0c1  li {
  display: inline-block;
  text-align: right;
}

div.r0c1  a {
   display: inline-block;
   text-decoration: none;
   color: white;
   padding: 0px 10px;
   box-shadow: 50px 50px 50px black;
}

div.r0c1  a:hover {
background-color: blue;
text-decoration: underline;
}

div.r0c2  {
    background-color: darkblue;
    width: 20%; 
    overflow: hidden;
    float:right;
    margin: 0px 0px;
    text-align: center;
    color: white;
    padding: 0px 0px;
    border-radius: 0px;
     font-family: Helvetica,  Tahoma, sans-serif;
    font-size: 24px;
}
div.r0c2  a {
   color: lightblue;
   text-decoration: none;
   }

div.r0c2  a:hover {
      background-color: blueviolet;
      text-decoration: bold;
      }