next-ucap-messenger/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/message.component.scss

.message-box {
  position: relative;
  height: 100%;
}
.current-head {
  h3 {
    display: inline-flex;
    padding-left: 10px;
    align-items: center;
    color: #ffffff;
  }
  .btn-box {
    height: 100%;
    margin-left: auto;
    display: inline-flex;
    align-items: center;
  }
}
.mat-tab-label-active {
  opacity: 1;
}
.message-item {
  cursor: pointer;
}
::ng-deep .message-box {
  .message-section {
    position: relative;
    //height: calc(100% - 120px);
    .message-tab {
      position: relative;
      height: 100%;
    }
  }
}