Minify and improve the performance of CSS code.
The CSS minifier removes comments, line breaks and unnecessary spaces from your stylesheets, drops the last semicolon of each rule and shortens zero values, while keeping strings and selectors intact. It runs in your browser.
CSS is render blocking: the browser can't paint the page until the stylesheets are loaded. Smaller CSS files mean a faster first paint, better Core Web Vitals and a better experience on slow mobile connections.
All /* comments */ are stripped.
Spaces, tabs and line breaks are reduced to the minimum.
Quoted strings and selectors such as a :hover are preserved.
Your code is processed locally in your browser.
No, only characters that don't affect the styles are removed.
With HTTP/2 combining matters less, but fewer, smaller files still help.
Minification doesn't remove unused rules. Tools like PurgeCSS can do that as part of your build.
Yes, or use the HTML minifier, which also minifies style tags.