body {
  overflow: hidden;
}

#screen {
  background-image: linear-gradient(to bottom, #090024, #500fc8);
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

.explosion {
  position: absolute;
}

.fire {
  position: absolute;
}

.fire:before {
  content: '';
  background-image: radial-gradient(#ff8f0f 0% 40%, #ffea00 100%);
  width: 100%;
  height: 100%;
  display: block;
  box-sizing: border-box;
  border-radius: 50%;
  box-shadow: 0 0 7px #ffea00;
  animation: fire 100ms infinite;
}

@keyframes fire {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.2);
  }
}