.zalochat{position:fixed;bottom:25px;right:25px;width:70px;animation-name:changewidth;animation-duration:0.5s;animation-iteration-count:infinite;border:2px solid #f70000;border-radius:50%;}

@keyframes changewidth {
  0% {width:70px;right:25px;bottom:25px;border-color:#ff9900;}
  50% {width: 76px;right:22px;bottom:22px;border-color:#fff;}
  100% {width:70px;right:25px;bottom:25px;border-color:#ff9900;}
}