You don’t tell CSS how to do something. You tell it what you want. The browser’s layout engine handles the complicated math.
This single property changes the math to what humans actually expect. CSS Demystified Start writing CSS with confidence
To write CSS with confidence, you must shift your mindset from "controlling" the browser to "collaborating" with it. Most developers struggle when they try to force specific pixel values on a web that is inherently fluid and unpredictable. You don’t tell CSS how to do something
"CSS is not a guessing game," Maya said, smiling. "It is a set of rules. Once you understand the core pillars, the mystery disappears. Today, we conquer the Box Model." This single property changes the math to what
Use this on every project. It is the universal standard.
/* This will NOT win against a class selector */ div color: black;