:target {
  animation: highlight 1s ease;  
  transform: translateX(20px);     
}
@keyframes highlight {
  0% { border-left-color: red; }
  100% { border-left-color: white; }
}
section > div {
  text-align: center;
  font-size: 200%;
  border-left: 50px solid white;
  padding: 10px;
  transition: all 0.5s ease;     
  padding-right: 0px;
  margin-left: 0px;    
  top:20px;
}