a {
  text-decoration: none;
}

/*nav {
  font-family: monospace;
}*/

ul {
  background: darkorange;
  list-style: none;
  margin: 0;
  padding-left: 0;
}

/*li {
    color: #fff;
    background: #ff8c0000;
    display: block;
    float: left;
   padding: 1rem;
    position: relative;
    text-decoration: none;
    transition-duration: 0.5s;
}*/
  
li a {
  color: #fff;
}

li:hover,
li:focus-within {
  background: #ff8c0000;
  cursor: pointer;
}

li:focus-within a {
  outline: none;
}
/*
ul li ul {
  background: #ff8c0000;
  visibility: hidden;
  opacity: 0;
  min-width: 5rem;
  position: absolute;
  transition: all 0.5s ease;
  margin-top: 1rem;
  left: 0;
  display: none;
}*/
ul li ul {
    background: #ff8c0000;
    visibility: hidden;
    opacity: 0;
    min-width: 5rem;
    position: absolute;
    transition: all 0.5s ease;
    margin-top: 0.5rem;
    left: 1px;
    display: none;
}


ul li:hover > ul,
ul li:focus-within > ul,
ul li ul:hover,
ul li ul:focus {
  visibility: visible;
  opacity: 1;
  display: block
}

ul li ul li {
  clear: both;
  width: 100%;
}