CSS file not refreshing in browser
Solution 1:
The fix is called "hard refresh" http://en.wikipedia.org/wiki/Wikipedia:Bypass_your_cache
In most Windows and Linux browsers: Hold down Ctrl and press F5.
In Apple Safari: Hold down ⇧ Shift and click the Reload toolbar button.
In Chrome and Firefox for Mac: Hold down both ⌘ Cmd+⇧ Shift and press R.
Solution 2:
Try opening the style sheet itself (by entering its address into the browser's address bar) and pressing F5. If it still doesn't refresh, your problem lies elsewhere.
If you update a style sheet and want to make sure it gets refreshed in every visitor's cache, a very popular method to do that is to add a version number as a GET parameter. That way, the style sheet gets refreshed when necessary, but not more often than that.
<link rel="stylesheet" type="text/css" href="styles.css?version=51">