Boxes behaving badly

Hiya all,

I am trying to get to the bottom of this misbehaviour. I have a row of boxes on the front page of my draft site at bramhill.myzen.co.uk/TempCCC/index.htm.

On extra large screens, the yellow box pulls away from the other three, leaving a wider gutter. See screen snaps.

The only thing I’ve done when compared with the live site at colchester-cycling.org.uk is to add a button to the first box. However, I have deleted the button and the gap still occurs.

To all intents and purposes, the settings for every box are the same.

Advice appreciated.

Will

(NB

Fixed! Not enough text in the box. As soon as I wrote more, the box was back on its best behaviour.