Hello,
Tables might be old, so keeping responsive divs with settings like colored borders, respond to show rest in new line/as scrollable component, etc to make tables is best for the future.
Currently table support is very bad, however a number of editors like TinyMce, Telerik KendoUI editor, Simditor etc have tried putting tables support. I think the best inspiration would be Adobe Dreamweaver/Muse.
I'm sorry, this is too broad and vague to make a useful issue report.
probably means building table/tr/td as .table/.tr/.td and using media queries to alter display: table and friends
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probably means building table/tr/td as .table/.tr/.td and using media queries to alter
display: tableand friends