HTML dialog Tag: Main Tips
- Introduced in HTML5, 
dialogtag specifies an interactive dialog box. - You must use both opening and closing 
dialogtags. - This tag supports global attributes.
 
  Pros   Main Features    
 - Easy to use with a learn-by-doing approach
 - Offers quality content
 - Gamified in-browser coding experience
 - The price matches the quality
 - Suitable for learners ranging from beginner to advanced
 
- Free certificates of completion
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  Pros   Main Features    
 - Simplistic design (no unnecessary information)
 - High-quality courses (even the free ones)
 - Variety of features
 
- Nanodegree programs
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 - Paid Certificates of completion
 
  Pros   Main Features    
 - A wide range of learning programs
 - University-level courses
 - Easy to navigate
 - Verified certificates
 - Free learning track available
 
- University-level courses
 - Suitable for enterprises
 - Verified certificates of completion
 
Using dialog Tags
HTML dialog tags create pop-up dialog boxes in the code:
 Example    
<table>
  <tbody>
    <tr>
      <th>Morning<dialog open>This is an open dialog window</dialog></th>
      <th>Day</th>
      <th>Evening</th>
    </tr>
    <tr>
      <td>8:00</td>
      <td>12:00</td>
      <td>17:00</td>
    </tr>
  </tbody>
</table>
open is the most commonly used attribute for this tag. When it is set, the HTML dialog box is active and available for interaction. When it is not set, the box will not be displayed.
Note: you cannot use the tabindex attribute with HTML dialog tags.
Browser support
 Chrome
  37+  
 
 Edge
  -  
 
 Firefox
  53+  
 
 IE
  -  
 
 Opera
  24+  
 
 Safari
  -  
 Mobile browser support
 Chrome
  37+  
 
 Firefox
  53+  
 
 Opera
  -  
 
 Safari
  -