.typing-txt{display: none;}
ul{list-style:none;}
.typing ul li{
  display:block;
}
.typing ul li.on {  
  display: inline-block; 
  animation-name: cursor; 
  animation-duration: 0.3s; 
  animation-iteration-count: infinite; 
} 
@keyframes cursor{ 
  0%{border-right: 1px solid #fff} 
  50%{border-right: 1px solid #000} 
  100%{border-right: 1px solid #fff} 
}