.master-detail-container {
  display: flex;
  height: 80vh;
  width: 70vw;
  overflow: hidden;
  border: 1px solid black;
}

.sidebar {
  width: 200px;
  flex-shrink: 0;
  background: black;
  color: white;
  overflow-y: auto;
}

.content-area {
  flex-grow: 1;
  overflow-y: auto;
  padding: 10px 40px;
}

.date-item {
  border-bottom: 1px solid #eee;
}
.date-item-blog {
  color: pink;
  padding: 10px;
  cursor: pointer;
}
.date-item-blog:hover { background: #34353a; }