.text-banner {
  position: relative;
  text-align: center;
  margin-left: 200px;
  margin-right: 200px;
  background-repeat: no-repeat;
  background-position: left, right;
  background-size: 40px 40px, 40px 40px;
  background-image: 
    url('/religion/vietnam/design/flag.jpg'),
    url('/religion/vietnam/design/flag.jpg');
}

@media (max-width: 960px) {
  .text-banner {
    margin-left: 0;
    margin-right: 0;
    background-image: none;
    background-size: initial;
    background-position: initial;
    background-repeat: initial;
  }
}