Using blending mode in the Webflow Designer, you can clip out black and white content (such as text, borders, PNGs, SVGs, and more), so your content becomes a window to your background elements (this could be an image or a video).
If you have a white background and black content, choose the blending mode Lighten to clip out the black. If you have a black background and white content, choose the blending mode Darken to clip out the white.
Check out the sites used in the beginning: