Marks the image for observation by the PerformanceElementTiming API. The value given becomes an identifier for the observed image element. Tümpel also the elementtiming attribute page. Try it Yourself » The width and height attributes always define the width and height of the image in pixels. His aim is to https://messiahgqbmv.59bloggers.com/29190236/immer-meine-image-um-zu-arbeiten