Override them using the same technique you used to make the DIV's background color red. Web developers usually keep all CSS code in a document's style section or in external style sheets.

For example, if you want the page "index.html" to use the CSS template "template.css," then save template.css in the same folder in which you store "index.html." Open the HTML file in a text editor.

The CSS Filter Effects specification, which is backed by Adobe, defines a mechanism for applying common graphical filters to Web content. It can be used to adjust brightness, saturation, hue, and ...

If a section feels boring, add a bold feature. As you continue learning HTML, CSS and JavaScript, keep practising and experimenting. You will gain confidence and improve your coding skills.

CSS Animations is one of the enhancements to CSS proposed by the WebKit project that weve been calling CSS Effects (eg. gradients, masks, transitions).