@media screen and (max-width: 768px) {
  .pages_bg {
    background-position: left bottom 10%;
    padding-bottom: 0;
  }
  .pages_contents {
    margin-top: 0;
  }
  .pages_video {
    margin-bottom: 20px;
  }
  .pages_heading {
    font-size: 20px;
    margin-bottom: 20px;
  }
  .pages_text {
    font-size: 14px;
  }
}