How to add a custom CSS file in Magento 2

[sportame]

Is there a way to create my own CSS file that loads last in the cascade?

If so, how and where do I add my custom CSS file?

[Dmitry_Fedyuk · Accepted solution]

How to add JavaScript / CSS / Less with a custom module: https://mage2.pro/t/34

When you need to give your CSS rule more priority than a standard CSS rule, just use a stronger selector.