This responsive visualization uses an embedded Observable notebook to explore a color gradient that transitions from white through yellow, orange, pink, and purple. The SVG layout displays a linear gradient bar with scale numbers from 1 to 5 and the question "DO YOU FEEL THE HEAT?" centered above. CSS media queries adjust the SVG and iframe dimensions for tablet and mobile screens. The code relies on SVG elements, CSS styling with Roboto and Myriad Pro fonts, and an iframe embedding an Observable cell for content.