Terminology
Web pages vs. websites
When writing about a single document, use "web page" (not "webpage"). When writing about all the pages available at a single domain, use "website" (not "web site"). Read more in What is the Difference between Webpage, Website, Web Server, and Search Engine?.
Layout vs. Lay out
Layout is a noun. Lay out is a verb phrase. Read more in Layout or Lay out - What's the Difference?.
Versus or vs. or vs or v. or v
Prefer versus or vs. unless referring to a legal case where v. is the convention according to Versus and Its Abbreviations.