Adjust element to toggle grid column not working

Hello there :slight_smile:

I'm trying to drag an element and when I resize and move it (for example 1 block of text and 1 image) It doesnt stay where I whant it to stay. (50% text column + 50% image column)
Also I cannot set the right size of an element to the toggle grid columns. It is quite frustrating.
http://ec2-52-58-199-62.eu-central-1.compute.amazonaws.com/sobre-nosotros/
Please could you help me?

Thank you,
Marcel Odena