Apr 26, 2016
According to the W3C, HTML5 attribute values can be wrapped in single quotes or double quotes or no quotes at all. The same rules apply to HTML4, though some form of quotes is recommended. And in XHTML, values have to be wrapped in quotes, either single or double.
Dreamweaver CC 2015, out of the box, only wants double quotes around attribute values, which is weird. Misha Abesadze asked about this on the Adobe forum and Madhusudan N answered by describing how to fix Dreamweaver so that it doesn’t mark single-quoted attribute values with error messages. In the video below, we show the solution:
For a discussion of when to use single and double quotes, see this StackOverflow article.