*{
  position: relative;
  font-size: 18px;
}
body{
  margin: 0;
}
.default-button{
  margin: 0;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
}
.menu-button{
  background-color: black;
  width: 30px;
  height: 3px;
  display: inline-block;
  position: absolute;
  left: 53px;
  top: 14px;
  transition: transform 0.5s;
  transform: translate(0, 0) rotate(0);
}
.menu-element{
  border-bottom: 1px solid black;
  border-top: 1px solid black;
  text-decoration: none;
  color: black;
  height: 30px;
  background-color: white;
  transition: background-color 0.5s;
  line-height: 30px;
}
.menu-element:hover{
  background-color: rgb(200, 200, 200);
}
.submenu{
  padding-left: 10px;
}