Tables

Wiki markup

{| style="width:75%; height:200px" border="1"
|- 
| abc || def || ghi
|- style="height:100px" 
| jkl || style="width:200px" |mno || pqr
|-
| stu || vwx || yz
|}

end result:

abc	def	ghi
jkl	mno	pqr
stu	vwx	yz