code: function ( label, input ) {
  		var avail = this.box.width - label.offsetWidth;
  		var space = gui.Client.isGecko ? 6 : 4;
  		input.style.width = avail - space + "px";
  	}
docs: Something that should go to CSS.
  @param {HTMLLabelElement} label
  @param {HTMLInputElement} input