1. CSS Backdrop Filter

    Method of applying filter effects (like blur, grayscale or hue) to content/elements below the target element.

  2. CSS filter() function

    This function filters a CSS input image with a set of filter functions (like blur, grayscale or hue)

  3. CSS Filter Effects

    Method of applying filter effects using the `filter` property to elements, matching filters available in SVG. Filter functions include blur, brightness, contrast, drop-shadow, grayscale, hue-rotate, invert, opacity, sepia and saturate.

  4. css property: filter: grayscale

  5. types: `<filter-function>`: `grayscale()`