The style of a website is defined by the CSS. CSS describes text fonts, if images must have borders or shadows, etc. Simply changing the CSS styles, you can change the appearance of your website completely, without changing the contents (text, images…).
For changing the CSS styles, there’s no need to be an expert webmaster, as there are tips and tools that can ease this task.
Here you are a list of the 50 most useful tips and tools for customizing your website easily with CSS.