The opacity property sets the opacity level for an element. The opacity-level describes the transparency-level, where 1 is not transparent at all, 0.5 is 50% see-through, and 0 is completely transparent.

Dec 16, 2025 · The opacity CSS property sets the opacity of an element. Opacity is the degree to which content behind an element is hidden, and is the opposite of transparency.

Sep 5, 2011 · Opacity can be used as an alternative to the visibility property: visibility: hidden; is just like opacity: 0;. The opacity property in CSS specifies how transparent an element is.

Jul 24, 2024 · The opacity in CSS is the property of an element that describes the transparency of the element. It is the opposite of transparency & represents the degree to which the content will be …

The opacity property is used to set the level of transparency of an element. Opacity is the opposite of transparency. This property is one of the CSS3 properties. This property allows making an element …

When using the opacity property to add transparency to the background of an element, all child elements inherit the same transparency. This can make the text inside a transparent element hard to …

CSS opacity property specifies the transparency level of an element. For example, img.second { opacity: 0.5; } Browser Output Here, the opacity: 0.5 sets the opacity of the second image to 0.5 which means …

Jan 1, 2026 · Learn about the opacity CSS Property. View description, syntax, values, examples and browser support for the opacity CSS Property.

Learn what the opacity property is in CSS, how to use it and reference some of its features.

The opacity property sets the opacity level for an element. The opacity-level describes the transparency-level, where 1 is not transparent at all, 0.5 is 50% see-through, and 0 is completely transparent.