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<?php 
/* add a class to define odd and even output from an array */
echo ($key%2) ? " even" : " odd";
?>

2dpi

<?php 
/* define the first or last element in an array */
if($key == "0") echo ' first';
if(count($myVar)==$key+1) echo ' last'; 
?>

2dpi

<?php if(count(JModuleHelper::getModules('module_position_here'))) :?>
<!-- only show if modules assigned -->
<?php
// define module position 
jimport( 'joomla.application.module.helper' );
$modules = &JModuleHelper::getModules( 'module_position_here' );
foreach ($modules as $module) { //loop through the array and render their output
$_options = array( 'style' => 'raw' );
echo JModuleHelper::renderModule( $module,$_options );
}

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<?php 
// define module by type / name 
jimport( 'joomla.application.module.helper' );
$module = JModuleHelper::getModule( 'menu', 'Main' );
$_options = array( 'style' => 'module' );
echo JModuleHelper::renderModule( $module,$_options );
?>

OR USE NO-NUMBER PLUGIN - e.g. {module xxx|module}

2dpi

/* to fix bug in chrome rendering 1px less than Firefox */
.wide_third {
max-width: 33.334%;
min-width: 33.333%;
/* IE conditional */
=width: 33.333%;
}

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https://github.com/Schepp/box-sizing-polyfill

Preface and Credits
This box-sizing polyfill is based on previous work done by Erik Arvidsson, which he published in 2002 on WebFX.

Since there were some edge/heavy usage cases where it broke I started pushing it further. And since the original was not aware of IE8 I also added feature-detection for box-sizing, to do nothing when detected positive.

During that I also borrowed dimension measuring techniques from Dean Edwards' IE7.js script.

Usage

2dpi

https://code.google.com/p/ie7-js/

IE7.js is a JavaScript library to make Microsoft Internet Explorer behave like a standards-compliant browser. It fixes many HTML and CSS issues and makes transparent PNG work correctly under IE5 and IE6.

2dpi

The new xx-XX.override.ini file has been created to avoid this issue. Instead of changing the original file, one can add in a file tagged to the language chosen (en-GB.override.ini for example) any key already existing somewhere among all ini files and a specific value.
The file has to be placed in:

administrator/languages/overrides/en-GB.override.ini 

or 

languages/overrides/en-GB.override.ini for frontend.

For example, if you add the following value to the override.ini file:

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<?
// add to from module code to avoid submission issues
if ( ( JCck::getConfig_Param( 'validation', 2 ) > 1 ) && $config['validation'] != '' ) {

}

;?>

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div[style] {
   background: yellow !important;
}