Chrome extension popup - button resizes incorrectly after clicking

I have a Chrome extension with a popup (a popup is the HTML rendered when you click the short-cut to the extension, next to the omni-bar).

I have some standalone buttons and for some reason whenever I click them they do not return to their original view state. They continue to work (I can continue to click them), but they are very small. Not ideal.

Before Click:

After Click:

The HTML itself is simply:

<input type="button" id="search" value="Search" />

with is no enclosing form.

Any clues as to what could be causing this? The same happens with inputs of type "submit".开发者_开发百科

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There must be a javascript somewhere that sets empty input value. Maybe your input id/class matches some other element you are cleaning.

Remove all javascript from the page and go from there adding it back part by part.

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You might have put some javascript that empties the value. Try replacing input buttons with
<button></button>
and see if it still happens.