          <div class="gallery-image-container">
                  <img src="../assets/images/IMAGE_NAME" class="gallery-image">
                  <span class="image-caption">IMAGE_CAPTION</span>
                </div>

              Half Width Image: 

                <div class="gallery-image-container half-width">
                  <img src="../assets/images/IMAGE_NAME" class="gallery-image">
                  <span class="image-caption">IMAGE_CAPTION</span>
                </div>

              - To add 