The Layout tab gives you 9 preset options to create Rows and Columns for your layout. You can also create your own row/column by typing numbers into the Create your own textbox. Page Builder uses a 12-column responsive grid that uses a CSS file to automatically calculate the width of each module, across different device sizes. This feature saves designers a ton of time, because they don't need to mess with styling the widths.
Add Page Builder Widgets to your header.
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