<!DOCTYPE html>
<html dir="ltr">
 <head>
  <meta charset="utf-8">
  <title></title>

  <style type="text/css">

  div
    {
      background-color: green;
      border-left: green none 0px;
      border-right: green none 0px;
      height: 50px;
      left: 20%;
      margin-left: 0px;
      margin-right: 0px;
      position: absolute;
      right: 20%;
      top: 0px;
      width: 20%;
    }

  </style>
 </head>

 <body>

  <div></div>

 </body>
</html>