@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@100;300;400;500;700;900&display=swap');
* {
  font-family: 'Noto Sans KR', sans-serif;
}
h2 {
  text-align: center;
}
#nav-placeholder {
width: 100%;
  position: sticky;
  top: 0;
  z-index: 9;
}
.navbar-toggler {
  outline: none!important;
}
.container.inv {
  display: none;
}
.container {
position: relative;
}
.navbar-collapse.collapse.show {
    height: 100vh;
  }