A favicon is an icon on a website, that will typically show up in your web browser's favourites/bookmarks.
See this website for a description of favicons: http://www.html-kit.com/favicon/ . It also has a useful utility that allows you to upload your own image and you can then download a ZIP file containing the 16×16 icon.
<head> section:<link rel="shortcut icon" href="favicon.ico" >
Note: this assumes your icon is called favicon.ico and it's in the same directory as the HTML page.
favicon.ico to the /style folder on evilpixel.<head> section of each page.<link rel="shortcut icon" href="/style/favicon.ico" >