.act-btn {
  background: #36BD49;
  display: block;
  width: 70px;
  height: 70px;
  text-align: center;
  color: white;
  border-radius: 50%;
  -webkit-border-radius: 50%;
  text-decoration: none;
  transition: ease all 0.3s;
  position: fixed;
  right: 30px;
  bottom: 30px;
  z-index: 999;
}