next-ucap-messenger/projects/ucap-webmessenger-ui-chat/src/lib/components/message-box/mass.component.scss

.bubble-main {
  padding: 14px;
  text-align: left;
}

.btn-box {
  border-top: 1px solid #dddddd;
  height: 40px;
  .mat-button {
    width: 100%;
    display: block;
  }
}