.button {
  cursor: pointer;
  width: 150px;
  padding: 10px 5px 10px 5px;
  border-radius: 1000px;
  font-weight: bolder;
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    Oxygen,
    Ubuntu,
    Cantarell,
    "Open Sans",
    "Helvetica Neue",
    sans-serif;
  font-size: 25px;
  box-shadow: inset 0px -9px 15px rgba(0, 0, 0, 0.693);
  line-height: 40px;
  background-color: #212121;
  color: rgb(121, 121, 121);
  border-top: none;
  border-left: none;
  border-right: none;
  border-bottom: rgba(71, 71, 71, 0.452) 1px solid;
  position: relative;
  transition: background-image 0.3s ease;
}
.button::before {
  z-index: -1;
  position: absolute;
  top: 0;
  left: 0;
  content: "";
  width: 150px;
  height: 60px;
  border-radius: 1000px;
  box-shadow: 3px 10px 10px rgba(0, 0, 0, 0.452);
}
.button:focus:not(:active) {
  transition: color 0.3s ease-in-out;
  color: greenyellow;
  text-shadow: 0 0 13px rgba(172, 255, 47, 0.329);
  box-shadow: inset 0px -5px 10px rgba(0, 0, 0, 0.5);
}
.button:focus:not(:active) {
  animation: clickButton 0.76s
    linear(
      0,
      0.234 11.8%,
      0.403 18.4%,
      0.624 24.7%,
      0.999 33.3%,
      0.76 39.9%,
      0.705 42.6%,
      0.687 45.2%,
      0.703 47.7%,
      0.753 50.3%,
      0.999 57.7%,
      0.89 61.8%,
      0.865 63.6%,
      0.857 65.3%,
      0.865 67%,
      0.887 68.8%,
      0.999 74.5%,
      0.957 77.5%,
      0.944 80.2%,
      0.954 82.7%,
      1 88.2%,
      0.988 91.9%,
      1
    );
}
.Container_particles_plus {
  display: flex;
  justify-content: space-between;
  width: 70%;
  position: absolute;
  top: 30%;
  left: 40%;
  transform: translate(-50%, -50%);
}
.particles_plus {
  filter: drop-shadow(0 0 13px rgba(172, 255, 47, 0.849));
}
.particles_plus:nth-child(1) {
  display: none;
  opacity: 0;
  animation: particles_plus 0.9s linear;
}
.particles_plus:nth-child(2) {
  display: none;
  opacity: 0;
  animation: particles_plus 0.9s 0.4s linear;
}
.particles_plus:nth-child(3) {
  display: none;
  opacity: 0;
  animation: particles_plus 0.9s 0.1s linear;
}
.particles_plus:nth-child(4) {
  display: none;
  opacity: 0;
  animation: particles_plus 0.9s 0.2s linear;
}

.button:focus:not(:active) .particles_plus {
  display: block;
}

.button:active:not(:focus) .particles_plus {
  display: block;
}
@keyframes particles_plus {
  0% {
    opacity: 0;
    transform: translate(50%);
  }
  50% {
    opacity: 1;
    transform: translate(50%, -50%);
  }
  90%,
  100% {
    opacity: 0;
    transform: translate(50%, -100%);
  }
}
@keyframes clickButton {
  0% {
    scale: 1;
  }
  50% {
    scale: 0.9;
  }
  100% {
    scale: 1;
  }
}