main {
  display: flex;
  margin: 10px 0;
}

#left, #right {
  display: flex;
  flex-direction: column;
}

#left {
  min-width: 320px;
}

#mid {
  width: 40px;
}

#since {
  display: flex;
  align-items: center;
  background-color: #f1f1f1;
  justify-content: center;
  font-size: 14px;
  user-select: none;
  -webkit-user-select: none;
}

#since-since {
  margin-right: 5px;
}

#since-year:first-letter {
  color: tomato;
}

#since-month:first-letter {
  color: deepskyblue;
}

#since-day:first-letter {
  color: mediumaquamarine;
}

#notice .title {
  margin-bottom: 0!important;
  cursor: default!important;
}

.title {
  border-bottom: 2px solid #aaa;
  padding: 10px;
  font-size: 14px;
  font-weight: 700;
  color: #777;
  margin: 10px 0;
  user-select: none;
  -webkit-user-select: none;
  cursor: pointer;
}

#notice-title {
  color: #000;
  font-weight: 700;
  font-size: 15px;
  padding: 10px;
}

#notice-main {
  background-color: #f1f1f1;
  min-height: 320px;
  border-bottom: 2px solid #555;
  margin-bottom: 20px;
}

pre#notice-content {
  font-family: "Noto Sans KR", sans-serif;
  color: #666;
  font-size: 13px;
  padding: 10px;
  margin-top: 0;
}

div.article {
  display: flex;
  align-items: center;
  padding-left: 10px;
  user-select: none;
  -webkit-user-select: none;
}

div.article::before {
  content: "■";
  font-size: 6px;
  color: #a52a2a;
  margin-right: 8px;
}

div.article > span.subject {
  color: #555;
  cursor: pointer;
  margin-right: 8px;
}

div.article > span {
  font-size: 13px;
}

div.article > span.subject:hover {
  color: #000;
  font-weight: 700;
}

#footer-image {
  user-select: none;
  -webkit-user-select: none;
}