... CSS3, and JQuery. Full-screen Background Video is a way to present your website playing a video in the background without disturbing its content. Such type of layout video can be used for the header. Fullscreen background video with text is the best user-interface for any kind of portfolio website or business website. Source Files included: – HTML, Internal CSS, and Video. On some hand-held devices, you cannot "auto-play" or force the video to start, the user must click on the browser's "play" button.There is no work around via Java. To set background color opacity, CSS offers RGBA and HSLA.. background-image. Fixed height video. CSS background and background-image properties only accept colours, gradients, bitmaps and SVG as values. Mobirise helps you cut down development time by providing you with a flexible website editor with a drag and drop interface. 6 months ago. You can add borders, change its opacity, use CSS animations, and lots more. [html] [/html] It uses the property