Dreamweaver CS5.5 and responsive cloud interaction

Despite its name, Creative Cloud is not cloud-based software.  DW CC downloads and installs on your computer the same as Creative Suite products did.   The only difference is the payment and distribution model.  You do not need to be online 24/7 to use it. 

Nancy

Dreamweaver is a code editor, and it is for the user to update their code in order to build a responsive site. No matter which version you use, you can create a responsive layout if you know what you are doing.

Later versions of Dw do include responsive starter layouts, and dw 2015 onwards uses the bootstrap framework to do this, but that is not the only method available to you. If you do not wish to use bootstrap, and would prefer to forgo the cost of a cc subscription, a cheaper alternative may be to use a project7 layout building extension, of which i would recommend the ones that uses flexbox for its layout system -

http://www.projectseven.com/products/tools/hmy/index.htm

also look at -

http://www.projectseven.com/products/templates/pagepacks/css-builder2/index.htm