<div class="container">
  <div class="row">
      <div class="cpl-3">...</div>
      <div class="cpl-9">
         <div class="parallax" style="background-image: url('pic.jpg');"></div>
      </div>
  </div>
</div>

.parallax {
    min-height: 300px;
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

max-width: 100%;
max-height: 100%;