:root {
  --default-color-btns: #3A74B4;
  --default-color-intersection: rgba(0, 0, 0, .7);
  --cantidad-btns: 1;
}

.group-btn-fixed {
  position: fixed;
  bottom: 30px;
  right: 15px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: calc( 63px * var(--cantidad-btns));
}

.group-btn-fixed .btn-fixed {
  border-radius: 100%;
  background-color: var(--default-color-btns);
  box-shadow: -4px 4px 24px -10px var(--default-color-btns) !important;
  text-align: center;
  width: 50px;
  height: 50px;
}

.group-btn-fixed .btn-fixed::after {
  content: '';
  width: 60px;
  height: 60px;
  border: 2px dashed var(--default-color-btns);
  background: transparent;
  border-radius: 50%;
  bottom: 44px;
  right: 5px;
  position: relative;
  display: block;
  transition: all 0.5s;
}

.group-btn-fixed.intersection-color .btn-fixed{
  background-color: var(--default-color-intersection);
}

.group-btn-fixed.intersection-color .btn-fixed::after {
  border: 2px dashed var(--default-color-intersection);
}

@keyframes spinAround {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}


.group-btn-fixed .btn-fixed:hover::after {
  -webkit-animation: spinAround 9s linear infinite;
  -moz-animation: spinAround 9s linear infinite;
  animation: spinAround 9s linear infinite;
}

.group-btn-fixed .btn-fixed i {
  font-size: 1.5rem;
  color: white;
  margin-top: 12px;
}