message: improved record button
diff: +.record {
  + padding-right: 5px;
  +}
  +
  .si-record {
  color: #ec2f2a;
  animation: none;
  }
  .si-record.active::before {
  - animation: fadeIn 1s infinite alternate;
  + animation: fadeIn 500ms infinite alternate;
  + background: red;
  + width: 8px;
  + height: 8px;
  + display: block;
  + margin: auto;
  + content: "";
  }
  @keyframes fadeIn {
  - from { opacity: 0; }
  -}
  -
  -.record {
  - padding-right: 5px;
  + from { opacity: 0.3; }
  }
  