.gallery{
    width: 100%;
    height: auto;
}
.teacher-banner {
    width: 100%;height: 600px !important;
    padding: 250px 0px;
    background: linear-gradient(rgba(0,0,0,0.5),rgba(0,0,0,0.5)),url(../img/page-banner-2.jpg);
    background-size: cover;
    background-position: center center;
    background-attachment: fixed;
  }
  .galleryImg:hover .gImg{
    scale: 1.2;
    transition: 0.5s ease-out;
  }
 .overview{
  width: 100%;
  min-height: 660px;
  background: url(../img/overview-bg.jpg);
  background-attachment: fixed;
  background-size: cover;
 }