#toggle {
  display: block;
  width: 15px;
  height: 30px;
  margin-top:22px;
}

#toggle span:after,
#toggle span:before {
  content: "";
  position: absolute;
  left: 0;
  top: -9px;
}

#toggle span:after{
  top: 9px;
}

#toggle span {
  position: relative;
  display: block;
}

#toggle span,
#toggle span:after,
#toggle span:before {
  width: 100%;
  height: 5px;
  background-color: #878787;
  transition: all 0.3s;
  backface-visibility: hidden;
}

/* on activation */
#toggle.on span {
  background-color: transparent;
}

#toggle.on + #menu {
  opacity: 1;
}

/* menu appearance*/
#menu {
  text-align:center;
  position: relative;
  color: #5c5c5b;
  width: 130px;
  height: 125px;
  line-height:30px;
  padding: 15px;
  margin-left: -80px;
  font-family: 'Cantarell', sans-serif;
  font-size:14px;
  border-radius: 4px;
  background: white;
  box-shadow: 0 1px 8px rgba(0,0,0,0.08);
  /* just for this demo */
  opacity: 0; 
  transition: opacity .4s;
  z-index:20;
}

#menu:after {
  position: absolute;
  top: -10px;
  left: 75px;
  content: "";
  display: block;
  border-left: 15px solid transparent;
  border-right: 15px solid transparent;
  border-bottom: 20px solid white;
}

ul, li, li a {
  list-style: none;
  display: block;
  margin: 0;
  padding: 0;
}

li a {
  padding: 5px;
  color: #888;
  text-decoration: none;
  transition: all .2s;
}

li a:hover,
li a:focus {
  color: #14d6e0;
}