"Minify CSS" means that your webpage is using CSS files that are not minified, which can slow down your site and negatively impact the user experience.
How to fix it
The solution is to minify your CSS files. Here's how:
Step 1: Identify Unminified CSS Files
First, you need to identify the unminified CSS files. You can use Chrome DevTools for this. Open DevTools, go to the 'Sources' tab, and look for CSS files that are larger than necessary.
Step 2: Minify CSS Files
Once you've identified the unminified CSS files, you need to minify them. This might involve using a tool like CSSNano or CleanCSS to remove unnecessary characters and whitespace, shorten class names, and perform other optimizations.
<!-- Before --> <link rel="stylesheet" href="styles.css"> <!-- After --> <link rel="stylesheet" href="styles.min.css">
In this example, we've replaced an unminified CSS file with a minified version to reduce the file size.
Step 3: Test Your Changes
For an even better solution, consider testing your changes to make sure they don't break any functionality. This can help ensure that your site still works as expected with the minified CSS files.