This bar chart displays four vertical bars of varying heights, each represented as a black rectangle on a white background. The bars are evenly spaced, with the tallest on the left and progressively shorter bars to the right. The visualization uses raw SVG elements—specifically `<rect>` tags—to draw the chart directly within an HTML page. The page includes basic styling for margins and hidden overflow, and the SVG canvas has fixed dimensions of 960 by 500 pixels.