<style type="text/css">
  #drop-nav ul {list-style:outside;margin: 0px;}
  #drop-nav ul li {position: relative;float: left;border:1px solid #000}
   #drop-nav li ul {display: none;}
   #drop-nav ul li a { background: #000;text-decoration: none;}
  #drop-nav ul li a:hover {background: #000;}
  #drop-nav li:hover ul {display: block; position:absolute;}
   #drop-nav li:hover li {float:left; align-content:flex-start;}
  /* #drop-nav li:hover a {background: #000;}*/
  /* #drop-nav li:hover li a:hover {background: #000;}*/
 /* #drop-nav li ul li {border-top: 0px;}*/
</style>
