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<html><head><style> p:first-of-type { background: red;}</style></head><body><p>The first paragraph.</p><p>The second paragraph.</p><p>The third paragraph.</p><p>The fourth paragraph.</p></body></html><html><head><style> p:first-of-type { background: red;}</style></head><body><p>The first paragraph.</p><p>The second paragraph.</p><p>The third paragraph.</p><p>The fourth paragraph.</p></body></html>