#chat {
  background: white;
  transition: all .3s;
  border-radius: 10px 10px 0px 0px;
  position: fixed;
  bottom: 0px;
  right: 20px;
  width: 50%;
  max-width: 500px;
  height: 1px;
  z-index: 1000000;
  border: none;
  opacity: 0;
  box-shadow: 0px -3px 16px 3px rgba(0, 0, 0, 0.22)
}

#chat.visible {
  height: 60vh;
  opacity: 1;
  transition: all .3s;
}

#chat iframe {
  height: 60vh;
  width: 100%;
  border-radius: 10px 10px 0px 0px;
  border: none;
}

#chat-close {
  background: #2196F3;
  box-sizing: border-box;
  border-radius: 100%;
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  z-index: 1000000;
  transition: all .3s;
  visibility: hidden;
}

#chat-close.visible {
  visibility: visible;
}

#chat-close:hover {
  /* background: rgba(255, 255, 255, 0.2); */
  -webkit-transition: background 0.8s, color 0.8s;
  -moz-transition: background 0.8s, color 0.8s;
  transition: background 0.8s, color 0.8s;
  transform: scale(1.1);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

#chat-close.on-top {
  bottom: calc(60vh + 20px);
  transition: all .3s;
}

@media (max-width:550px) {
  #chat {
    /* background: white; */
    /* transition: all .3s; */
    /* border-radius: 10px 10px 0px 0px; */
    /* position: fixed; */
    /* bottom: 0px; */
    right: 0px;
    left: 0px;
    width: initial;
    max-width: initial;
    /* height: 1px; */
    /* z-index: 1000000; */
    /* border: none; */
    /* opacity: 0; */
    /* box-shadow: 0px -3px 16px 3px rgba(0, 0, 0, 0.22) */
  }
  
  #chat.visible {
    height: 100vh;
    /* opacity: 1; */
    /* transition: all .3s; */
  }
  
  #chat iframe {
    height: 100vh;
    /* width: 100%; */
    border-radius: 0px;
    /* border: none; */
  }
  
  #chat-close {
    /* background-color: #2196F3; */
    /* box-sizing: border-box; */
    /* border-radius: 100%; */
    /* position: fixed; */
    /* bottom: 20px; */
    /* right: 20px; */
    /* width: 50px; */
    /* height: 50px; */
    /* z-index: 1000000; */
    /* transition: all .3s; */
    /* visibility: hidden; */
  }
  
  #chat-close.visible {
    /* visibility: visible; */
  }
  
  #chat-close:hover {
    /* background: rgba(255, 255, 255, 0.2); */
    /* -webkit-transition: background 0.8s, color 0.8s; */
    /* -moz-transition: background 0.8s, color 0.8s; */
    /* transition: background 0.8s, color 0.8s; */
    /* transform: scale(1.1); */
    /* border: 1px solid rgba(255, 255, 255, 0.4); */
  }
  
  #chat-close.on-top {
    padding: 5px !important;
    bottom: calc(100vh - 90px);
    right: 10px;
    width: 25px;
    height: 25px;
    z-index: 1000001;
    background: #2196F3;
    object-fit: cover;
    /* transition: all .3s; */
  }
}

@media (min-width:501px) {}