Have you ever wanted to apply Instagram-like filters to HTML elements? Well, now you can. The CSS Filter Effects specification, which is backed by Adobe, defines a mechanism for applying common ...

Style the background. If you do not apply a background property to your navigation bar in CSS, it will display with a transparent background by default.

Learn how cascading style sheets (CSS) work, and how they can help you properly create HTML page layouts that conform to industry best practices.

One way to add a background photo to any custom Tumblr theme is to embed a simple CSS tag at the right location in the theme's HTML code.