The description is text shown beneath the form element, usually used to provide instructions to the user.

Setting the description

Time → Settings

Enter the text into the Description field. You can also enter HTML and shortcodes.

Styling the description with CSS

Time → Settings → Advanced

At Add a style click the button Description and enter the CSS into the box. The styles will only be applied to this single form element.

Still having trouble? Head over to the forums.