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<html><head><style>[lang|=en] { background: yellow;}</style></head><body><h1>Demo of the [attribute|=value] selector</h1><p>Elements with a lang attribute value of "en" or "en-" is styled with a yellow background:</p><p lang="en">Hello!</p><p lang="en-us">Hi!</p><p lang="en-gb">Ello!</p><p lang="us">Hi!</p><p lang="no">Hei!</p></body></html>