Image Page Align Center

In contentr setup:  Click the Image icon on the button bar.  Select a single image to upload, it will be centered on page. Click the image in the editor, then select ‘100%’ for width.

Upload two images, then Click an image.  Click the '48%’ icon on each image.  Each will take half the screen and appear side by side as below.

More views of Chicago skyscrapers.