The below map shows 3 cities in the US that I respectively have the most interst to visit. Pllus a North-East city in Canada that I have been looking forward to travel to.
Answer: Because of the #contents ID selector which cooperates with the CSS file althought I did not find this ID in our CSS code.
Answer: The value we modified is an x value which may change longitude when we scroll along the x axis. The American Continents are located at respectively [90, 0].
Answer: The syle that works with the GeoJSON files and indicate the location, I "quoted" from Martin`s on his page says that the style should look like this: