Height of a child div matched to parent

dezo

New Member
so I've looked around the site and know there are questions like this, but so many of them are for fluid-width layouts and I cannot get the techniques to work with what I am doing. I am just styling a form, and am having troubles with how the browser resizes. You can see the divs I am working with and my problem in the image below.
eS1HU.png
As you can see, below the \[code\].col-1-3\[/code\] div, as the browser resizes, there's a little space that shows up. I would like to match the height of the \[code\].col-1-3\[/code\] to that of it's parent, \[code\].formInput\[/code\]. Does anyone know anyway to go about doing this? I don't care if it's a hack or some sort of Javascript/jQuery solution.
 
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