title: Making Custom HTML Tags
body: <p>I understand that you can make your own HTML tags, but how do I go about doing it?</p>
  
  <p><em>Can you make it once and then just use it over and over again in the same file without redefining it? Can you import it into other files?</em></p>
  
  <p>I also want to know if it is recommended to make custom HTML tags. Does it work in all browsers?</p>
  
  <p>I know this is a lot, so I will thank you in advance.</p>