CSS and incandescent light bulb: what they have in common

1. Step 1. CSS — uses — HTML. It styles HTML.
2. Step 2. HTML — is used in — World Wide Web. The pages of the web.
3. Step 3. World Wide Web — was inspired by — Particle accelerator. The web was invented at CERN for sharing physicists’ data.
4. Step 4. Particle accelerator — uses — Vacuum. A vacuum chamber.
5. Step 5. Vacuum — is used in — Incandescent light bulb. The bulb was evacuated so the filament would not burn out.

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