.gallery {
    .photo {
      display: flex;
      display: -webkit-flex;
      align-items: center;
      height: 700px;
      position: relative;

        .photo-inner {
          overflow: hidden;
          position: relative;
          margin: auto;

          .photo-src {
            position: absolute;
            background-color: lightgray;
          }
        }

    }

}