2. It is up to you. And then we will see 4 different ways to add CSS background image opacity.. What is opacity? The content property is a special pseudo element property. The opacity property isn't the only way to specify opacity/transparency in CSS. Using CSS pseudo-elements of either :before or :after, you a div with a background image and set an opacity on it. Updated on July 1, 2020. by Neeraj Agarwal. In this article we're going to look at what you can do with the new opacity property in CSS3. whatever by Homely Herring on Oct 16 2020 Donate . cookie You can style these elements by appending the following selector syntax, ::pseudo-element. Hintergrundbilder werden immer über Hintergrundfarben gelegt. Try it Yourself ». Float the Semi-Transparent Image Over the Banner with CSS and HTML. the png format, and use a transparent image as background. Basic background image with color. Definition and Usage. For the child div (Transparent Box) — We use the opacity element and set it 0.6. There are 'virtual' elements added to real elements defined in the HTML. Specify the background image in the