title: how to get these symbols on buttons in HTML
body: <p>i am unable to find these symbols for HTML buttons.
  please tell me how to put these symbols on HTML buttons.</p>
  
  <p><a href="https://i.stack.imgur.com/KQ8V6.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/KQ8V6.png" alt="enter image description here"></a></p>