There are only two options to specify the DOCTYPE of the page, HTML5 or XHTML 1.0, in site.com but no option to add HTML tag based IE Condition.
for e.g, I want to add different html DOCTYPE based on IE
<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
<!--[if lt IE 7]><html class="lt-ie9 lt-ie8 lt-ie7" xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"><![endif]-->
<!--[if IE 7]><html class="lt-ie9 lt-ie8" xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"><![endif]-->
<!--[if IE 8]><html class="lt-ie9" xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"><![endif]-->
<!--[if gt IE 8]><!--><html xmlns="http://www.w3.org/1999/xhtml"><!--<![endif]-->
Can anybody help how to add these comments tags in "page-templates" in site.com.