#setting-bar {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
}

.chat-button {
  width: 33.33%;
  height: calc(85px / var(--buttonRatio));
  margin-bottom: 0.5rem;
  margin-top: 0.5rem;
}

.chat-button-selected {
  border-top: 2px solid green;
}

#help {
  background-image: url("../static/image/Main/setting/Tab_menu1.png");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  height: 100%;
  width: 100%;
  margin-top: 0.5rem;
}

#overview {
  background-image: url("../static/image/Main/setting/Tab_menu2.png");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  height: 100%;
  width: 100%;
  margin-top: 0.5rem;
}

#access {
  background-image: url("../static/image/Main/setting/Tab_menu3.png");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  height: 100%;
  width: 100%;
  margin-top: 0.5rem;
}

#volume {
  background-image: url("../static/image/Main/setting/Tab_menu5.png");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  height: 100%;
  width: 100%;
  margin-top: 0.5rem;
}

#back {
  background-image: url("../static/image/Main/setting/Tab_menu4.png");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  height: 100%;
  width: 100%;
  margin-top: 0.5rem;
}

@media (max-width: 991px) and (max-height: 568px) {
  #setting-bar {
    position: absolute;
    width: calc(85px / var(--buttonRatio));
    padding: 0;
    margin: 0;
    bottom: 0.8rem;
    left: calc(559px / var(--navRatio) - 106px / var(--navRatio) / 4);
  }

  .chat-button {
    width: 100%;
    margin-bottom: 0.4rem;
    margin-top: 0.4rem;
    border: none;
  }
}