CSS Terminology

Opacity

Opacity is the degree to which content behind an element is hidden. An opacity of 1 is fully opaque, while 0 is fully transparent.

Understanding Opacity

Code Examples

Using Opacity in TWColors

Our tools help you work with opacity effectively. Try our color tools to see how opacity affects your designs.

Explore our tools →

Related Terms

Learn More

Try Our Color Tools

Apply your knowledge of opacity with our free tools.

Explore Tools