https://htmltable.com/colspan/
Colspan to Merge HTML Table Cells Horizontally
html tablecolspanmergecells
https://pd4ml.com/forums/reply/re-is-it-work-html-td-colspan-attribute-in-pd4ml/
Re: Re: IS IT Work HTML TD ColSpan Attribute In PD4ML ? - PD4ML
it workhtmltdcolspanattribute
https://www.mbloging.com/course/html/html-colspan-rowspan-table-cells
HTML Colspan & Rowspan: Span Columns and Rows in Tables
Learn how to use colspan and rowspan attributes in HTML to merge table cells. Create advanced, readable, and accessible table layouts with ease.
htmlcolspanrowspancolumnstables