Why does a gutter remain when a layout cell is collapsed?

I have a layout style 3T with headers hidden for all. When I make the left side collapse there is still a little bit left, like a gutter. How do I make it collapse entirely? I will use javascript to open it again. The user wont have to click on the header to open it again. See attached screenshot of the remaining gutter with the cell collapsed. Is there a way to collapse down to only 5px or so left?

You may redefine 2 properties of skyblue skin cpanel_collapsed_width and cpanel_collapsed_height (by default they are 18):

dhxLayout = new dhtmlXLayoutObject(“parentId”, “3T”);

dhxLayout.skinParams[“dhx_skyblue”].cpanel_collapsed_width = 0;
dhxLayout.skinParams[“dhx_skyblue”].cpanel_collapsed_height = 0;
dhxLayout.setSkin(“dhx_skyblue”);

Thanks. I actually found it in the layout.js script and changed it there… Much easier. :slight_smile: