Every build tool compresses your CSS before deployment. Most developers enable minification without a second thought. But do you know what it actually removes from your code? Here's a practical breakdown. What CSS Minification Does Minification strips everything that the browser doesn't need to parse your styles correctly. That includes: Whitespace and newlines — Your source CSS uses spaces and newlines for readability. The browser doesn't need them. A rule like: .button { background-color : #2f855a ; padding : 12px 24px ; border-radius : 4px ; } Enter fullscreen mode Exit fullscreen mode becomes: .button { background-color : #2f855a ; padding : 12px 24px ; border-radius : 4px } Enter fullscreen mode Exit fullscreen mode Comments — Every /* This sets the primary brand color */ comment is invisible to the browser. Minification strips them entirely. Trailing semicolons — The last declaration in a block doesn't need a semicolon. .foo{color:red} is valid; .foo{color:red;} wastes one byte per block.…