This template produces formatted text, following the guideline for a Wikipedia hatnote. {{hatnote|Example hatnote text.}} →  Broadly speaking, a hatnote should answer a readers' question (maybe preemptively): Am I on the right page?   কার্যাবলী  This template is primarily used to add a correctly formatted hatnote to a page. Often, but not always, this is a disambiguation link at the top of article pages. It places an HTML div- / div block around the text entered as its only argument, which provides standardized formatting (contents are indented and italicized in most displays); it also isolates the contained code to make sure that it is interpreted correctly.  This template is also used as the "meta-template" for additional specialized disambiguation link templates; see :Category:Hatnote templates for a list.  The template does not automatically create links of any kind. Links and other desired formatting must be explicitly added, using normal Wikipedia markup.   ব্যবহার    Basic usage  {{hatnote|text}}   All parameters  {{hatnote|text|extraclasses=extra classes|selfref=yes|category=no}}   প্যারামিটার   This template accepts the following parameters:  1 - the hatnote text (required)  extraclasses - any extra CSS classes to be added - For example, the  template adds the classes "".  selfref - If set to "yes", "y", "true" or "1", adds the CSS class "selfref". This is used to denote self-references to Wikipedia. See Template:Selfref for more information.  category - If set to "no", "n", "false", or "0", suppresses the error tracking category (:Category:Hatnote templates with errors). This has an effect only if the  leftmost parameter (the hatnote text) is omitted.   উদাহরণ    {{hatnote|Example hatnote text}} →    ত্রুটি   If no hatnote text is supplied, the template will output the following message:    If you see this error message, it is for one of four reasons:  No parameters were specified (the template code was {{hatnote}}). Please use {{hatnote|text}} instead.  Some parameters were specified, but the hatnote text wasn't included. For example, the template text {{hatnote|extraclasses=seealso}} will produce this error. Please use (for example) {{hatnote|text|extraclasses=seealso}} instead.  The hatnote text was specified, but that text contains an equals sign ("="). The equals sign has a special meaning in template code, and because of this it cannot be used in template parameters that do not specify a parameter name. For example, the template code {{hatnote|2+2=4}} will produce this error. To work around this, you can specify the parameter name explicitly by using 1= before the hatnote text, like this: {{hatnote|1=2+2=4}}.  You tried to access Module:Hatnote directly by using {{#invoke:hatnote|hatnote|text}}. Use of #invoke in this way has been disabled for performance reasons. Please use {{hatnote|text}} instead.  If you see this error message and are unsure of what to do, please post a message on Template talk:Hatnote, and someone should be able to help you.  Pages that contain this error message are tracked in :Category:Hatnote templates with errors.  প্রযুক্তিগত বিবরণ   The HTML code produced by this template looks like this:   <div role="note" class="hatnote">hatnote text</div>  The code is produced by Module:Hatnote.