Magento 1.9 Theme – How to Edit HTML in the Body

What is contained between <!-- --> is interpreted by the browser as a comment. Even if it may be interpreted by some browsers differently the rule is the same "You cannot have a comment inside a comment".
So your line is interpreted like this:

<!--[if <!--[if (gte IE 9) | (IEMobile)]><!-->]>
  |                                          ||  
  |                                          ||---output
  |--- comment start                         |--- comment end

That's why you see the ]> at the top of the pages. It is interpreted as output.
The correct use of the <if> tags when adding stylesheets is this:

<action method="addItem">
    <type>skin_css</type>
    <name>css/styles-ie.css</name>
    <params/>
    <if>lt IE 8</if>
</action>

So you have to put only the condition inside the <if> tag. the comment tags will be added automatically by Magento in Mage_Page_Block_Html_Head::getCssJsHtml.
So try it like this:

<action method="addItem"><type>skin_css</type><name>css/styles.css</name><params/><if>(gte IE 9) | (IEMobile)</if></action>

lalachka

Q1: Magento was responsive

Answer: Magento responsive design depend on it theme.You may be use custom theme,So magento does not responsible for responsive.If you use magento default responsive theme RWD and does not have any customization then your should see responsive Design.

Q3: Class from "cms-index-index cms-home" to "cms-page-view cms-home"

Answer: This body class automatically generate basic of magento logic.You need do some customization you want to change body to cms-page-view cms-home

Solution

For this case,you need Override the Block class Mage_Page_Block_Html .

and at function getBodyClass() return value cms-page-view cms-home when it is home page.

<?php 
class [ModuleNameSpace_ModuleName]_Block_Page_Html extends Mage_Page_Block_Html{

    public function getBodyClass()
    {
        /* detect current page is home and return
        * cms-page-view cms-home as body class  
         */
        $action = Mage::app()->getFrontController()->getAction();
        if($action->getFullActionName()=='cms_index_index'):
            return 'cms-page-view cms-home amit';
        endif;
        return $this->_getData('body_class');
    }
}