.menu {
  position: relative;
  display: inline-block;
  min-width: 75px;
}
.menu-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 75px;
  box-shadow: 5px 8px 16px 5px rgba(10,50,1000,0.2);
  padding: 12px 16px;
  z-index: 1;
}

.menu:hover .menu-content {
  display: block;
}