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.
Indeed! It was a pleasant surprise, to me at least. I didn't immediately associate a Py IDE with JS dev (I'm a relative late comer to Django and still don't instinctively connect Python to webdev), but since they're my two languages of choice right now, it's ideal.
(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!)