Div colour on textbox change

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1

I have a series of divs each of which contain an image, a line of text and a textbox where the user enters a number.

Is there a way to make the background of the div change colour if the number in the text box isn’t 0.

Or could this be done using a:visited?

Any pointers would be really appreciated.

2

You could add an onchange event handler to the text box which changes the bg colour of the div if the current value of the text box is not 0.