http://www.alistapart.com/articles/holygrail
http://www.manisheriar.com/holygrail/index.htm

Holygrail fails in cases where pages don't have either left or right blocks because it sets a fixed width for left, right and center column with paddings and if sideblocks are missing we see empty space there.

Yui grids are interesting like http://developer.yahoo.com/yui/grids/builder/ but them may need a similar check of existence of sideblocks like holygrail - or can yui grids collapse automatically or fill the empty space if colums have no content? ... we should just test it.

div#table-layout {
width: 100%;
display:table;
margin-top: .5em;
}
div#table-layout .grid_row {
display:table-cell;
vertical-align:top;
}
#page {
margin: .5em;
}

And this to layouts.php:

<div id="table-layout" class="container">
<?php if ($PAGE->blocks->region_has_content('side-pre', $OUTPUT))

Unknown macro: { ?> <div id="region-side-pre" class="block-region region-side-pre aside grid_row"> <?php echo $OUTPUT->blocks_for_region('side-pre') ?> </div> <?php }

?>
<div id="content" class="block-region content grid_row"> [MAIN CONTENT GOES HERE] </div>
<?php if ($PAGE->blocks->region_has_content('side-post', $OUTPUT))

Unknown macro: { ?> <div id="region-side-post" class="block-region region-side-post aside grid_row"> <?php echo $OUTPUT->blocks_for_region('side-post') ?> </div> <?php }

?>
<div class="clearfix"> </div>
</div>

Might do the trick.

The problem with yui grid presets is that widths of those preset columns don't fit very well to current column widths of standard theme - and again all things can be changed but if we want to use same kind of layout as current standard theme yui grids may not be the right tool.

As far as I can see your solution makes any kind of layouts possible Tim and a big Thank You for that... Was your original idea to find some different solution (layout) or only to replace table layout with div layout? What did you mean by "something better" meaning is there something else wrong in current layout.php than tables?

I suppose it is ok to use yui grids like any other solution that people just want to use.

http://docs.moodle.org/en/Development:Theme_changes_proposal

Petr,

that plan sounds quite reasonable, well planned and we'll see how things roll on - it was just a major surprise that a couple days ago I was testing the system that Tim created and now we suddenly have a new theme proposal with lots of big changes.

Can you post some info about final proposal to theme forum when you have implemented the changed proposal so that all theme designers who are eager to try all kinds of cool things will know how to go on with moodle 2.0 themes...