adjusting the column

  I'm new to mendix and I'm confused I'm doing what the tutorial is saying with the app I'm trying to make. I'm trying to adjust the size and shape of a column for a open page and the size won't change. Can you help me? 
1 answers

Is it a pop up page that you are trying to change? In the properties of the pop up page, you can define the width and height in pixels.