How to Override CSS Inside DIV Classes. If you ever need to tweak the appearance of a page on your business website, you may have to modify Cascading Style Sheet code.

jsFiddle is the perfect solution; it provides a custom environment (based on user selections) to test (or fiddle with) your JavaScript, HTML, and CSS code right inside your browser.

Locate the CSS file URL address in the HTML coding. This is usually near the top of the coding and will end with a .css file extension. Highlight the CSS file URL, right-click and select "Copy." ...

HTML (Hyper Text Markup Language) is a markup language for creating a web page. Web pages are usually viewed in a web browser. They can include text, links, images, and even audio and video.