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To install this theme the following steps are necessary:
Step 1: Remove any site CSS files that may exist (these can cause conflicts). E.g. from {your community portal installation path}\Site\CSS
Step 2: Download Flex.Zip file to your local machine
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Unless a new version of Portal has been installed, users may be required to refresh their cache (see Flex - Responsive Community Portal Theme#ResponsiveCommunityPortalTheme-FAQ for assistance)
Step 23: Extract the flex folder into portal/site folder.
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Site folder will contain the flex folder which contains four files as follows:
Step 34: Add the path to the flex-script.js to your config xml file.
Step 45: Your config XML file will then include the path to the theme and is ready to use.
Step 56: Reload Community Portal Application Pool (IIS)
Step 67: Customization to the Flex theme can be done through flex-custom.css which needs to be included in the config xml as one of the other AdditionalResources.