Some of the slide images in some Webel tutorial trail slide pages are quite large or long. In some web browsers, one can easily zoom in on an image after clicking on it and opening it in the inline slide image viewer, but in some web browsers one can't. If your web browser can't zoom in on image inline, just open the image in a separate tab then zoom in there. Most browsers offer 'Open image in a new tab' as a context menu (right click) feature.