Photoshop CC 2015 tutorial showing how to transform your photos into fun, color-grid, mosaic graphics. Get 15% off BORIS FX OPTICS! - The BEST special effects plug-in for PHOTOS in Photoshop!

This permits you to customize the shape of the preset you chose. Click on one of the points of the grid covering the image, and then drag to shape the grid so that the image appears to fit the ...

Here’s the final result of the 2 by 3 grid (bottom). To create a grid that shows a portion of the image but not the whole thing, turn on Zoom to Fill in the Image Settings panel on the right.

HTML doesn't offer as clean a solution for vertical lines as it does for horizontal lines -- a vertical equivalent to the Set your image up within your text and add a "style" attribute tag.