How to Use Viewport for a WordPress Theme

1. Write a post in WordPress.
2. Create three JPEG or GIF images using any image-editing program. The image sizes should be 940 by 600, 940 by 300 and 270 by 172 pixels.

3. Click 'Add an Image' in your post. Upload the 940 by 600 pixels image.
4. Copy the link from the list that appears when the image uploads, then click 'Save all changes' and close the window by clicking on the 'x' at the top right of the page.
5. Scroll down the page to the Custom Fields tab and type 'lead_image' into the key image field.
6. Paste the image link you copied in Step 3 into the value box and click 'Add Custom Field.'
7. Repeat Steps 3 through 6 with the other two images, typing 'single_image' into the Custom Fields value for the second image and 'archive_image' into the Custom Fields value for the third image.