Bugs in content types

I have been using the H5P Mod editor for Wordpress to change button colors etc.  

On this page I want the audio play buttons to be a certain color (115, 171, 184) and when I put in the relevant css class, it doesn't change anything.  Is it being overridden?

Here is the page and the buttons are on the second slide onwards.

http://www.halsuga.com/project/toefl-listening/

Here is what I had in my h5p.css

.h5p-audio-minimal-button .h5p-audio-minimal-play {

I have been trying to edit my content that is in the form of 'memory cards'. However, everytime I tried to edit it by selecting the edit function, the page doesn't load. This has been going on now for 2 days. 

I haven't updated my library since September and when I hit
update on the wordpress H5P Content Type Cache, it gives me this error:
cURL error 28: Connection timed out after 10000 milliseconds
Couldn't communicate with the H5P Hub. Please try again later.

Do I update manually?  If so, where can I get the file?