Adding support for RTL to hello-friend theme

I want to build a new blog and I really love ‘hello-friend’ theme.
My blog will be in Hebrew so I need to convert it into RTL (Right to Left).
I wounder what should I supposed to do in order to make the apeptation?
I opened the Style.css in theme folder and I added the following string:

direction: RTL;

But nothing has been changed.

i’ll be glad to get some help with it :smile:
Thank you!

The HTML element in your base template should look something like:

<html dir="rtl" lang="{{ or site.LanguageCode site.Language.Lang }}">

No CSS required.

And for a multilingual site…

defaultContentLanguage = 'he'
defaultContentLanguageInSubdir = false

contentDir = 'content/he'
languageCode = 'he-IL'
languageDirection = 'rtl'
languageName = 'Hebrew'
weight = 1

contentDir = 'content/en'
languageCode = 'en-US'
languageDirection = 'ltr'
languageName = 'English'
weight = 2


<html dir="{{ site.Language.LanguageDirection }}" lang="{{ or site.LanguageCode site.Language.Lang }}">

Thank you
I succeeded to make the adaptation.