This example demonstrates a hand-drawn polyline chart rendered directly as SVG markup, with eight thick black line segments forming a jagged trend across a 960×500 canvas. The visualization imports D3’s `select` function from UNPKG and local ES6 modules to display a “Hello VizHub!” message, while the chart itself is static SVG defined in the HTML body without any data binding or scales. The lines are styled with a 10-pixel stroke and clipped to the viewport using an SVG `clipPath`, showing a purely declarative approach to line-graph construction.