.sidebar-nav {
  margin-top: 20px;
  padding: 0;
  list-style: none;
}



.bg-main{
    background-color:#fcefca;
}

.hr-menu {
  display: block;
  margin-top: 0.1em;
  margin-bottom: 0.1em;
  margin-left: auto;
  margin-right: auto;
  border-style: inset;
  border-width: 1px;
}

.collapsein{
    display: none;
}


a {
  color: dimgray;
  text-decoration: none;
}

#intro, #lecture, #career, #thesis, #articles {
    scroll-margin-top: 70px; /* 네비 높이 */
}