A good Plugin to use is WP Minify Fix: http://wordpress.org/plugins/wp-minify-fix/. Simply Activate it.
What the plugin will do is Minify all your items. In short, it will remove all the white spaces from all your files.
Look at – www.gtmetrix.com
The above will fix these problems on most sites:
- Convert small CSS files into one large file or bring in-line
- Minify CSS
- Move inline style blocks and <link> elements into the head vs. body
- Avoid CSS @import
Note: Make sure to test your site and ensure everything is loading properly after adding the plugin WP Minify Fix.
Note: How do you know if WP Minify Fix is working? View source – http://yoursite.com/