/*Here I will write css for show horizantal nav menu*/
navMenu ul {
  list-style: none;
  padding: 0;
  margin: 0;
  background: #1bc2a2;
}
 
navMenu ul li {
  display: block;
  position: relative;
  float: left;
   background-color: Black;
}
li ul { display: none; }
 
ul li a {
  display: block;
  padding: 1em;
  text-decoration: none;
  white-space: nowrap; 
  color: black;     
}
 
navMenu ul li a:hover { background: #1bc2a2; }
li:hover > ul {
  display: block;
  position: absolute;
}
 
li:hover li { float: none; }
 
navMenu li:hover a { background: rgb(122, 197, 36); }
 
li:hover li a:hover { background: rgb(122, 197, 36); }
 
.main-navigation li ul li { border-top: 0; }
ul ul ul {
  left: 100%;
  top: 0;
}
ul:before,
ul:after {
  content: " "; /* 1 */
  display: table; /* 2 */
}
ul:after { clear: both; }