If after a website change nothing happens try refreshing your browser.
One of the files types that can get updated when making changes to a website are the CSS files.
Browsers can cache CSS files. This means that on your first visit to a website your browser will download CSS files. Once the CSS files are downloaded the browser will use the copy of the CSS files stored on your computer. If CSS files change between visits then next time you view the website you might be using old CSS files.
To refresh your browser using Internet Explorer press F5.