title: What characters can be used for up/down triangle (arrow without stem) for display in HTML?
body: <p>I'm looking for a <strong>HTML</strong> or <strong>ASCII</strong> character which is a triangle pointing up or down so that I can use it as a toggle switch.</p>
  
  <p>I found &uarr; (<code>&amp;uarr;</code>), and &darr; (<code>&amp;darr;</code>) - but those have a narrow stem. I'm looking just for the HTML arrow "head".</p>