#mySidenav a {
  z-index: 9999;
  font-family:Arial, Helvetica, sans-serif;
  position: absolute;
  left: -90px;
  transition: 0.3s;
  padding: 20px;
  width: 75px;
  text-decoration: none;
  font-size: 16px;
  color: black;
  border-radius: 0 5px 5px 0;
}

#mySidenav a:hover {
  z-index: 9999;
  left: 0;
}

#livechat {
  z-index: 9999;
  top: 500px;
  background-color: #f60600;
}

#livecall {
  z-index: 9999;
  top: 560px;
  background-color: #05a700;
}

#textus {
  z-index: 9999;
  top: 610px;
  background-color: #f7ff00;
}

#contact {
  z-index: 9999;
  top: 670px;
  background-color: #4b9de6
}