I think having good HTML/JS/CSS support is a general trait of all of the JetBrains IDEs, in case you are curious if the one for your language has it too.
(and the sass syntax highlighting was also a 'ooh!', as was the automagical git support, as was JetBrains' helpful personal email reply to my filled in questionnaire, as was... well, you get the idea. I'm a happy customer!)