A client has requested a specific "3D design" for the buttons on the website. See the exmple picture below:
I've searched for a suitable CSS library to create this 3D effect, but the best I've found is this page: https://bootsnipp.com/snippets/g6y1, which is pretty far from what is desired.
I have a module which has created a library. I've attached that library to a library and the css files are loaded when the template is loaded.
But the css styles are being overrided with the themes css stles.
For example the css file in my library will have button { padding: 5px; }, but my theme css will have button { padding: 10px; }, and the button gets padding 10px from theme instead of 5px from library.