#nav > ul {
  display: flex;
  list-style-type: none;
  justify-content: center;
  font-size: 1.4rem;
  line-height: 20px;
  margin: 0;
  margin-top: 10px;
}

#nav a:visited {
  color: black;
}

#nav li {
  display: flex;
  justify-content: center;
  width: 64px;
  margin-left: 14px;
  margin-right: 0;
  margin-top: 2px;
}

#nav li:nth-of-type(1) {
  margin-left: 0;
}

#nav a {
  text-decoration: none;
  text-align: center;
  display: inline-block;
}

#nav li {
  content: "";
  display: flex;
  justify-content: center;
  background-image: url(../assets/sp_main.png);
  background-size: 422px 405px;
  background-repeat: no-repeat;
  background-position: 0px -128px;
  width: 54px;
  height: 54px;
}

#nav li:hover {
  box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.12);
  border-radius: 10px;
}

#nav a div {
  content: "";
  display: inline-block;
  background-image: url(../assets/sp_main.png);
  background-size: 422px 405px;
  background-position: -250px -90px;
  background-repeat: no-repeat;
  width: 44px;
  height: 44px;
  margin: 0 3;
  margin-bottom: 10px;
}

#nav li:nth-of-type(1) ::after {
  margin-left: 0;
  padding-left: 0;
  margin-bottom: 10px;
}

#nav li:nth-of-type(2) a div {
  background-position: -250px 0px;
  margin-bottom: 10px;
}

#nav li:nth-of-type(3) a div {
  background-position: -201px -98px;
  margin-bottom: 10px;
}

#nav li:nth-of-type(4) a div {
  background-position: -90px -209px;
  margin-bottom: 10px;
}

#nav li:nth-of-type(5) a div {
  background-position: 0px -209px;
  margin-bottom: 10px;
}

#nav li:nth-of-type(6) a div {
  background-position: -180px -209px;
  margin-bottom: 10px;
}

#nav li:nth-of-type(7) a div {
  background-position: -45px -209px;
  margin-bottom: 10px;
}

#nav li:nth-of-type(8) a div {
  background-position: -201px 0px;
  margin-bottom: 10px;
}

#nav li:nth-of-type(9) a div {
  background-position: -225px -209px;
  margin-bottom: 10px;
}

#nav li:nth-of-type(10) a div {
  background-position: -250px -135px;
  margin-bottom: 10px;
}

#nav a span {
  margin-top: 10px;
  /* 적용 안되는 이유 찾기 */
}