A computer identifies audio objects in a web page and video objects in the web page based, at least in part, on markups in the web page. Layout locations of the video objects and the audio objects are determined. The layout locations correspond to display locations in a web browser. One or more of the video objects is associated with one or more of the audio objects based, at least in part, on the layout locations. Playback times are determined for the video objects and the audio objects based, at least in part, on association between the one or more of the video object with one or more of the audio objects. Content of each of the video objects is rendered with content of associated ones of the audio objects in accordance with the playback times. Recording, as the motion picture with audio, the rendering of the content.