Both the above child themes are working fine for me and loading the style.css file of child theme but it loads style.css file of child theme before the style.css file of parent theme so i modified the code of it to load the file after parent file.
Please try using the following child theme file removing the existing one.

https://drive.google.com/file/d/0B7X-aZPqO9LzZE9fdUh3ZllfWFE/view

If you still face any issue with it then could you please share me your site URL where it’s happening so that i can troubleshoot it?