html basics: see https://www.w3schools.com/html/default.asp

<html>  //the whole thing in html tags
  <head>  
    <title> // tags indicate certain formatting
      <title-text>
    </title>
  </head>
  <body>
    <p>
      <some text> //this bit only is displayed
    </p>
  </body>
</html>