Positioning

position: static | relative | absolute | fixed | inherit

relative: element moved from document flow by indicated amount; absolute: element is removed from document flow and positioned as directed

top, right, bottom, left: {length} | {percentage} | static-position | auto | inherit

Offsets from sides

width: {length} | {percentage} | auto

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height: {length} | auto

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z-index

define which overlapping element is above another

 

Here is an example of the initial splash page done with tables. Here is the same table with borders on to see the menagerie of rowspans and colspans...