In the Verst Dashboard, you can click any of the icons on the top of your screen to preview your site on mobile, iPad, and desktop. Click at any time to return.
If you'd like to preview a specific post, there will be a 3 button option icon to the right of "Update" (on a published post) or "Publish" (on a draft or new post) in the upper right corner of your screen. Clicking this will give you the option to preview that particular post. Once you're happy with the look of the post, hit publish and start impressing your readers.