This template is for use on talk pages to highlight the importance / warn. This template is used to visually draw attention inline in a message, to a warning about something, such as inappropriate editor behavior, a coding difficulty to watch out for, etc. It is not used in articles, only talk pages.
You may either use {{Warnsign}} by itself for the default message or you may add a custom message as an optional parameter.
Any of the following inline, comment-level templates can be converted into {{Resolved}}-style hatnotes by using {{Resbox}} to put a box around the icon and text.
{{enUici|Wikipedia:List of discussion templates|List of discussion templates]], a more linear table of essentially the same set of templates
Template:Resolved/See also, the smaller family of thread-level hatnote templates, similar to the above but with a box around them; any template above can be converted to one of those with {{Resbox}}