body {
  padding: 0;
  margin: 0;
}
#unity-container {
  position: absolute;
}
#unity-container.unity-desktop {
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
#unity-container.unity-mobile {
  position: fixed;
  width: 100%;
  height: 100%;
}
#unity-canvas {
  background: #231f20;
}
.unity-mobile #unity-canvas {
  width: 100%;
  height: 100%;
}
#unity-loading-bar {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: none;
}
#unity-logo {
  width: 154px;
  height: 130px;
  background: url("unity-logo-dark.png") no-repeat center;
}
#unity-progress-bar-empty {
  width: 141px;
  height: 18px;
  margin-top: 10px;
  margin-left: 6.5px;
  background: url("progress-bar-empty-dark.png") no-repeat center;
}
#unity-progress-bar-full {
  width: 0%;
  height: 18px;
  margin-top: 10px;
  background: url("progress-bar-full-dark.png") no-repeat center;
}
#unity-footer {
  position: relative;
}
.unity-mobile #unity-footer {
  display: none;
}
#unity-webgl-logo {
  float: left;
  width: 204px;
  height: 38px;
  background: url("webgl-logo.png") no-repeat center;
}
#unity-build-title {
  float: right;
  margin-right: 10px;
  line-height: 38px;
  font-family: arial;
  font-size: 18px;
}
#unity-fullscreen-button {
  cursor: pointer;
  float: right;
  width: 38px;
  height: 38px;
  background: url("fullscreen-button.png") no-repeat center;
}
#unity-warning {
  position: absolute;
  left: 50%;
  top: 5%;
  transform: translate(-50%);
  background: white;
  padding: 10px;
  display: none;
}
.heartbeat {
  animation: heartbeat 1.3s infinite;
}

@keyframes heartbeat {
  0% {
    transform: scale(1);
  }
  10% {
    transform: scale(1.08);
  }
  20% {
    transform: scale(0.92);
  }
  30% {
    transform: scale(1.08);
  }
  40% {
    transform: scale(1);
  }
  100% {
    transform: scale(1);
  }
}

.top-buttons a {
  flex: 1; /* each takes half */
  width: auto !important; /* cancel inline width */
  box-sizing: border-box;
  min-width: 0; /* prevents overflow with long text */
}

@media (max-width: 1200px) {
  .top-buttons {
    width: 90% !important;
    top: 1% !important;
    left: 50% !important;
    right: auto !important;
    transform: translateX(-50%) !important;
    padding: 8px 8px;
    flex-direction: column;
    position: absolute !important;
  }

  .btn {
    font-size: 16px;
    padding: 12px;
  }

  .unity-desktop {
    width: 100% !important; /* inline width on container may also block */
  }
}