Red_Falling_Heart's

      </style>

<details class="heart-toggle-wrap" open="">
  <summary class="star-toggle">♥️ Heart: ON/OFF</summary>
  <div class="heart-container">
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
    <div class="heart"></div>
  </div>
</details>

<style>
.heart-toggle-wrap {
  position: fixed;
  bottom: 70px;
  right: 12px;
  z-index: 99999;
  pointer-events: auto;
  width: auto;
  height: auto;
}
.heart-toggle-wrap > summary.heart-toggle {
  list-style: none;
  display: block;
  background: #20060a;
  border: 2px solid;
  border-color: #c2185b #8b0000 #8b0000 #4a0a14;
  color: #c2185b;
  font-family: 'Courier New', monospace;
  font-size: 0.7rem;
  padding: 4px 8px;
  cursor: pointer;
  text-shadow: 0 0 6px #c2185b;
  box-shadow: 3px 3px 0px #000;
  pointer-events: auto;
}
.heart-toggle-wrap > summary.heart-toggle::-webkit-details-marker { display: none; }
.heart-toggle-wrap .heart-container {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 9999;
  overflow: hidden;
}
details.heart-toggle-wrap:not([open]) .heart-container {
  display: none !important;
}
.heart {
  position: absolute;
  font-size: 0.9rem;
  opacity: 0;
  animation: float-heart 8s linear infinite;
  text-shadow: 0 0 6px #c2185b, 0 0 12px #4a0a14, 0 0 20px #8b0000;
}
.heart::before { content: "♥"; }
.heart:nth-child(1)  { left: 3%;  animation-delay: 0s;   animation-duration: 5s; font-size: 0.7rem; color: #c2185b; }
.heart:nth-child(2)  { left: 8%;  animation-delay: 0.5s; animation-duration: 4s; font-size: 1rem;   color: #8b0000; }
.heart:nth-child(3)  { left: 13%; animation-delay: 1s;   animation-duration: 6s; font-size: 0.6rem; color: #c2185b; }
.heart:nth-child(4)  { left: 18%; animation-delay: 0.3s; animation-duration: 5s; font-size: 0.8rem; color: #8b0000; }
.heart:nth-child(5)  { left: 24%; animation-delay: 1.8s; animation-duration: 4s; font-size: 0.5rem; color: #4a0a14; }
.heart:nth-child(6)  { left: 30%; animation-delay: 0.8s; animation-duration: 6s; font-size: 0.9rem; color: #8b0000; }
.heart:nth-child(7)  { left: 36%; animation-delay: 2s;   animation-duration: 5s; font-size: 0.6rem; color: #c2185b; }
.heart:nth-child(8)  { left: 42%; animation-delay: 0.2s; animation-duration: 4s; font-size: 1rem;   color: #4a0a14; }
.heart:nth-child(9)  { left: 48%; animation-delay: 1.4s; animation-duration: 5s; font-size: 0.7rem; color: #8b0000; }
.heart:nth-child(10) { left: 54%; animation-delay: 0.6s; animation-duration: 6s; font-size: 0.5rem; color: #c2185b; }
.heart:nth-child(11) { left: 60%; animation-delay: 2.5s; animation-duration: 4s; font-size: 0.8rem; color: #4a0a14; }
.heart:nth-child(12) { left: 66%; animation-delay: 1.1s; animation-duration: 5s; font-size: 0.6rem; color: #8b0000; }
.heart:nth-child(13) { left: 72%; animation-delay: 0.4s; animation-duration: 6s; font-size: 0.9rem; color: #c2185b; }
.heart:nth-child(14) { left: 78%; animation-delay: 1.7s; animation-duration: 4s; font-size: 0.5rem; color: #4a0a14; }
.heart:nth-child(15) { left: 84%; animation-delay: 0.9s; animation-duration: 5s; font-size: 0.7rem; color: #8b0000; }
.heart:nth-child(16) { left: 90%; animation-delay: 2.1s; animation-duration: 6s; font-size: 1rem;   color: #c2185b; }
.heart:nth-child(17) { left: 95%; animation-delay: 0.7s; animation-duration: 4s; font-size: 0.6rem; color: #4a0a14; }
.heart:nth-child(18) { left: 10%; animation-delay: 3s;   animation-duration: 5s; font-size: 0.8rem; color: #8b0000; }
.heart:nth-child(19) { left: 20%; animation-delay: 3.5s; animation-duration: 4s; font-size: 0.5rem; color: #c2185b; }
.heart:nth-child(20) { left: 45%; animation-delay: 2.8s; animation-duration: 6s; font-size: 0.9rem; color: #4a0a14; }
.heart:nth-child(21) { left: 55%; animation-delay: 3.2s; animation-duration: 5s; font-size: 0.7rem; color: #8b0000; }
.heart:nth-child(22) { left: 68%; animation-delay: 1.3s; animation-duration: 4s; font-size: 0.6rem; color: #c2185b; }
.heart:nth-child(23) { left: 80%; animation-delay: 3.8s; animation-duration: 5s; font-size: 0.8rem; color: #4a0a14; }
.heart:nth-child(24) { left: 38%; animation-delay: 4s;   animation-duration: 6s; font-size: 0.5rem; color: #8b0000; }
@keyframes float-star {
  0%   { transform: translateY(-10vh) rotate(0deg);   opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { transform: translateY(110vh) rotate(360deg); opacity: 0; }
}
@media screen and (max-width: 47.9em) {
  .heart-toggle-wrap {
    bottom: 80px;
    right: 8px;
  }
  .heart-toggle-wrap > summary.heart-toggle {
    padding: 8px 12px;
    font-size: 0.8rem;
  }
}
                      </style>