.credits{
  display: none;
}
body {
  height: 100vh;
  overflow: hidden;
  opacity: 0.5;
  background-color: black;
  display: -webkit-box;
  display: flex;
}

/* Here using -webkit, we make angle
of 45 degree of falling star */
.sky {
  position: relative;
  width: 100%;
  height: 100%;
  -webkit-transform: rotateZ(45deg);
  transform: rotateZ(45deg);
}

/* Here we are making roundabout balls */
.star {
  position: absolute;
  left: 50%;
  top: 50%;
  height: 2px;
  border-radius: 885px;
  background: linear-gradient(-45deg,
      #eef0f5, rgba(0, 0, 255, 0));

  -webkit-filter: drop-shadow(0 0 6px #eef1f8);
  filter: drop-shadow(0 0 6px #d7dff0);
  -webkit-animation: tail 3000ms ease-in-out infinite,
    shooting 3000ms ease-in-out infinite;
  animation: tail 3000ms ease-in-out infinite,
    shooting 3000ms ease-in-out infinite;
}

/* Here we add before and after effect to star */
.star::before,
.star::after {
  content: "";
  position: absolute;
  top: calc(50% - 1px);
  right: 0;
  height: 2px;
  background: linear-gradient(-45deg,
      rgba(0, 0, 255, 0),
      #eaeef8,
      rgba(0, 0, 255, 0));
  -webkit-transform: translateX(50%) rotateZ(45deg);
  transform: translateX(50%) rotateZ(45deg);
  border-radius: 100%;
  -webkit-animation: shining 3000ms ease-in-out infinite;
  animation: shining 3000ms ease-in-out infinite;
}

.star::after {
  -webkit-transform: translateX(50%) rotateZ(-45deg);
  transform: translateX(50%) rotateZ(-45deg);
}

/* Here we are adding location of each
  nth-child, animations, delays, and
  before and after effects to each
  and every balls(stars) */
.star:nth-child(1) {
  top: calc(50% - -119px);
  left: calc(50% - 43px);
  -webkit-animation-delay: 4000ms;
  animation-delay: 4000ms;
}

.star:nth-child(1)::before,
.star:nth-child(1)::after {
  -webkit-animation-delay: 4000ms;
  animation-delay: 4000ms;
}

.star:nth-child(2) {
  top: calc(50% - -43px);
  left: calc(50% - 37px);
  -webkit-animation-delay: 5000ms;
  animation-delay: 5000ms;
}

.star:nth-child(2)::before,
.star:nth-child(2)::after {
  -webkit-animation-delay: 5000ms;
  animation-delay: 5000ms;
}

.star:nth-child(3) {
  top: calc(50% - -40px);
  left: calc(50% - 222px);
  -webkit-animation-delay: 7000ms;
  animation-delay: 7000ms;
}

.star:nth-child(3)::before,
.star:nth-child(3)::after {
  -webkit-animation-delay: 7000ms;
  animation-delay: 7000ms;
}

.star:nth-child(4) {
  top: calc(50% - -29px);
  left: calc(50% - 113px);
  -webkit-animation-delay: 7000ms;
  animation-delay: 7000ms;
}

.star:nth-child(4)::before,
.star:nth-child(4)::after {
  -webkit-animation-delay: 7000ms;
  animation-delay: 7000ms;
}

.star:nth-child(5) {
  top: calc(50% - 146px);
  left: calc(50% - 112px);
  -webkit-animation-delay: 3000ms;
  animation-delay: 3000ms;
}

.star:nth-child(5)::before,
.star:nth-child(5)::after {
  -webkit-animation-delay: 3000ms;
  animation-delay: 3000ms;
}

.star:nth-child(6) {
  top: calc(50% - -108px);
  left: calc(50% - 160px);
  -webkit-animation-delay: 3000ms;
  animation-delay: 3000ms;
}

.star:nth-child(6)::before,
.star:nth-child(6)::after {
  -webkit-animation-delay: 3000ms;
  animation-delay: 3000ms;
}

.star:nth-child(7) {
  top: calc(50% - 52px);
  left: calc(50% - 72px);
  -webkit-animation-delay: 7000ms;
  animation-delay: 7000ms;
}

.star:nth-child(7)::before,
.star:nth-child(7)::after {
  -webkit-animation-delay: 7000ms;
  animation-delay: 7000ms;
}

/* This code will help to generate
effect in tail of star */
@keyframes tail {
  0% {
    width: 0;
  }

  30% {
    width: 100px;
  }

  100% {
    width: 0;
  }
}

/* This code will generate shining
effect in head of star */
@keyframes shining {
  0% {
    width: 0;
  }

  50% {
    width: 30px;
  }

  100% {
    width: 0;
  }
}

/* Here we are adding webkit-animation
to head of star for shining */
@-webkit-keyframes shining {
  0% {
    width: 0;
  }

  50% {
    width: 30px;
  }

  100% {
    width: 0;
  }
}

/* Here we are adding webkit-animation
to tail of star */
@-webkit-keyframes tail {
  0% {
    width: 0;
  }

  30% {
    width: 100px;
  }

  100% {
    width: 0;
  }
}

/* Here we are adding webkit-animation
for shooting effect */
@-webkit-keyframes shooting {
  0% {
    -webkit-transform: translateX(0);
    transform: translateX(0);
  }

  100% {
    -webkit-transform: translateX(270px);
    transform: translateX(270px);
  }
}

/* Here we make shooting effect */
@keyframes shooting {
  0% {
    -webkit-transform: translateX(0);
    transform: translateX(0);
  }

  100% {
    -webkit-transform: translateX(270px);
    transform: translateX(270px);
  }
}