Darep/Beatstream

#sm2-container {
  height: 0;
  position: absolute;
  visibility: hidden;
  width: 0;

  &.swf_timedout {
    // Didn't load before time-out, show to user.
    // Maybe highlight on-screen, red border, etc..?
    background: rgba(0, 0, 0, 0.8);
    height: 100px;
    margin: 60px 0 0 -100px;
    position: absolute;
    left: 50%;
    top: 50%;
    text-align: center;
    visibility: visible;
    width: 200px;
    z-index: 999;
  }

  div {
    height: 100%;
    min-height: 32px;
    position: relative;
  }

  &.swf_unblocked {
    // Applied if movie loads successfully after
    // an unblock (flash started, so move off-screen etc.)
  }

  &.swf_loaded {
    // Applied if movie loads, regardless of whether
    // it was initially blocked
    top: -100px;
    left: -100px;
    height: 0;
    visibility: hidden;
    width: 0;
    z-index: 0;
  }

  &.swf_error {
    // "Fatal" error case: SWF loaded,
    // but SM2 was unable to start for some reason.
    // (Flash security or other error case.)
  }

  &.high_performance {
    // Additional modifier for "high performance" mode
    // should apply position:fixed and left/bottom 0 to stay on-screen
    // at all times (better flash performance)
  }

  &.flash_debug {
    // Additional modifier for flash debug output mode
    // should use width/height 100% so you can read debug messages
  }
}

#sm2movie {
  height: 0;
  width: 0;

  .swf_timedout & {
    height: 100%;
    width: 100%;
  }
}