This concept transfers to the virtual environment: when we see a 3D-shaped button on a web page, we understand that we are supposed to “push” it with a mouse-click.

把这一概念移植到视觉设计领域：当我们在网页上看到一个有3D样式的按钮时，我们立马就能明白这是一个可以用鼠标来“按”的东西。

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Among the selection of natural pearl jewels offered is a necklace of saltwater natural pearls boasting 16 matching button-shaped pearls of impressive size.

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He has encouraged staff to wear button pins shaped like footballs (the best way to embarrass a Bank official is to draw attention to them).

ECONOMIST: Kick and tell

At the end of the night, you tell it you're going to sleep by pressing and holding the lone button until the Up vibrates and the tiny moon-shaped light glows.

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