Stretched templates are entirely flexible, filling the browser window as it expands or contracts. The browser screen resolution check shows what the template looks like with the viewer's monitor set to different screen resolutions.
Choose resolution: 800x600|1024x768|1280x1024
NOTE! Scrolling may appear if your screen resolution is lower than the one you selected for a preview. In case your screen resolution is higher, you will see the black area around the template that is not to be seen by user.