You're writing code in 2018 ... a lot of code editors and IDEs have linting built-in, smart autocomplete functionality, etc.
Given the fact that xhtml has mandatory rules, you just need a code editor/plug-in that has strict guidelines for code completion/error handling regarding xhtml ... use VScode editor (you'll definitely find a linting plug-in for html/xhtml linting).
Can you please provide us with a photo of your personal fact sheet?
I think it’s number one...
Explanation:
The Americans had a greater nuclear power with more than 300 land based intercontinental ballistic missiles (ICBMs) and a fleet of Polaris submarines. The Soviet Union had only 4 to 6 land based ICBMs and around 100 short range primitive V1 type cruise missiles that could only be launched from surfaced submarines.
