.contents-view {
  position: relative;
  height: 88vh;
  width: 100%;
  display: flex;
}

.contents-view-side-bar {
    flex: 3;
    height: 88vh;
    background: rgb(36,36,36);
    color: white;
    /*border-right: 1px solid rgba(0,0,0,0.1);*/
    border-right: 1px solid white;
  }

.contents-view-contents {
  flex: 7;
  height: 88vh;
}