regex to match all inline styles in html

styles_regex

style=(["'])(?:(?=(\\?))\2.)*?\1

<!--[^>]*-->

data-identifier=(["'])(?:(?=(\\?))\2.)*?\1
data-index=(["'])(?:(?=(\\?))\2.)*?\1
class=(["'])(?:(?=(\\?))\2.)*?\1
compilesafe=(["'])(?:(?=(\\?))\2.)*?\1

tooltip=(["'])(?:(?=(\\?))\2.)*?\1


this one is not bad
(\S+)=["']?((?:.(?!["']?\s+(?:\S+)=|[>"']))+.)["']?