Teletype Font: Main Tips
- Using 
tttag in HTML defined text as it would appear on a teletype or a similar device: in monospace or fixed width font. - This tag is deprecated since HTML5. You can use <code> or <samp> instead.
 - The teletype font tag supported all global attributes.
 
Using <tt> for Teletype Font
The HTML teletype text (tt) element made inline text look like it was displayed on a teletype, a line printer, or other device with a fixed-width display. 
Note: a typeface like this can also be called monotype or monospace.
Browser support
Chrome
  All  
 Edge
  All  
 Firefox
  All  
 IE
  All  
 Opera
  All  
 Safari
  All  
 Mobile browser support
Chrome
  All  
 Firefox
  All  
 Opera
  All  
 Safari
  All