There is a bug in Sitebuilder that extends modules beyond its container when you add more modules. See screenshot below.

To fix this issue, add this in css_additional template in AdminCP or via Sitebuilder > Style > CSS Editor.
With the above code, the container will automatically grow (when needed) as you add more modules.
To fix this issue, add this in css_additional template in AdminCP or via Sitebuilder > Style > CSS Editor.
Code:
.edit-mode .canvas-layout-container .canvas-layout .canvas-layout-row.has-columns .canvas-widget-list { height: auto; }
.edit-mode .canvas-layout-container .canvas-layout .canvas-layout-row.has-columns .canvas-widget-list:after {
content: "";
display: table;
clear: both;
}




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