The HTML top tag is not a self-closing tag. The content placed between the
opening and closing of this tag is moved to the <head> tag. When something is
passed using this taglib, the
top_head.jsp
is passed markup and outputs in this JSP.
This tag also has an optional outputKey attribute. If several portlets
on the page include the same resource with this tag, you can specify the same
outputKey value for each tag so the resource is only loaded once.
The example configuration below uses the <liferay-util:html-top> tag to
include additional CSS styles provided by the portlet’s bundle:
<liferay-util:html-top outputKey="htmltop">
<link data-senna-track="permanent"
href="/o/my-liferay-util-portlet/css/my-custom-styles.css"
rel="stylesheet" type="text/css" />
</liferay-util:html-top>
Now you know how to use the <liferay-util:html-top> tag to include additional
resources in the top of the page’s HTML tag.
Related Topics
Using the Liferay Util HTML Bottom Tag