.voicebtn.speaking {
  border-color: rgba(255, 92, 105, .75) !important;
  background: rgba(100, 24, 34, .35) !important;
  color: #ffb8bf !important;
  box-shadow: 0 0 0 1px rgba(255, 92, 105, .12), 0 0 18px rgba(255, 92, 105, .10);
  font-size: 0;
}
.voicebtn.speaking::before {
  content: '■';
  margin-right: 6px;
  font-size: 12px;
  vertical-align: middle;
}
.voicebtn.speaking span {
  font-size: 13px;
  vertical-align: middle;
}