<div class="fab-container">
  <div class="fab-menu">
    <button class="fab-action" aria-label="Edit">&#9998;</button>
    <button class="fab-action" aria-label="Like">&#9829;</button>
    <button class="fab-action" aria-label="Share">&#10148;</button>
  </div>
  <button class="fab-main" aria-label="Open Menu">&#43;</button>
</div>

.fab-container {
  font-family: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
  gap: 15px;
}
.fab-main {
  width: 60px;
  height: 60px;
  background: #2563eb;
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 2rem;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  display: flex;
  align-items: center;
  justify-content: center;
}
.fab-menu {
  display: flex;
  flex-direction: column-reverse;
  gap: 15px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  transition: opacity 0.3s, transform 0.3s;
}
.fab-action {
  width: 45px;
  height: 45px;
  background: #fff;
  color: #4b5563;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  transition: background 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.fab-action:hover {
  background: #f3f4f6;
}
.fab-container:hover .fab-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.fab-container:hover .fab-main {
  transform: rotate(45deg);
  background: #1d4ed8;
}