MiniFront Page - Change colour of the "Read more" button

Thnak you very much again! Tried to add it to the theme.css file but did not work. Is there any particular section or line where this should go? Thanks for your patience!

Thank you, I added it and now the english version got blue buttons. I tried to change the colour to red but it dows not work, the added code is in line 59 and 60, could you please let me know whether there is any mistake? Thank you again!

It finally worked! I managed to set the correct colour based on your code, thank you very much! The only thinkg left is that the colour has not changed in the spanish version, only in the english one, any ideas how to fix that, thank you!!

I finally managed to do so, just had to change the layout style of my Minifront Page module for the spanish news to match the code, thank you again very much for your support, it is highly appreciated.