Workarounds for setting fixed table column width in Confluence wiki

Inserting non-breaking spaces in the heading column:
https://answers.atlassian.com/questions/181058/is-there-a-way-to-resize-the-columns-of-a-table-on-confluence

Also via table-plus macro:
https://bobswift.atlassian.net/wiki/display/TBL/Controlling+the+Width+of+Table+Columns