Can I easily style an input control?

Is it easily, straightforwardly possible (no heroic measures: do not revive -- it's not that important) to style an input type="text" control? I'd like to match its height to the font-siz开发者_开发问答e:70%; height of the label beside it.

I've tried the obvious: input style="height:70%;" but no joy.

Thanks!

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If am not mistaken, font-size:70% will do the trick. But am not 100% sure.