A simple SVG bar chart displays four dark gray rectangles of varying heights on a blank canvas, approximating categorical data without axes or labels. The bars, sized via explicit pixel values, are positioned horizontally across a 900x500 viewBox. The code uses raw SVG `<rect>` elements with hardcoded coordinates and dimensions, styled with a uniform `#1E1E1E` fill. No JavaScript libraries or data-binding frameworks are involved; the rendering relies solely on static markup and inline attributes, with a minimal CSS reset to remove page margins.