Using the HTML5 structural elements
1) What is <DOCTYPE> tag?


<customer_logged_out>
<reference name="top.links">
<!--Add 'Log In' link -->
<action method="addLink" translate="label title" module="customer">
<label>Log In</label>
<url helper="customer/getLoginUrl"/>
<title>Log In</title>
<prepare/>
<urlParams/>
<position>100</position> <liParams/>
<aParams>class="logged-out"</aParams>
</action>
</reference>
</customer_logged_out>