multiple checkbox selection in html code example

Example: html multiple checkbox list

<form method="post" action="/Tests/Post/">         
  <fieldset>              
    <legend>What is Your Favorite Pet?</legend>             
    <input type="checkbox" name="favorite_pet" value="Cats">Cats<br>             
    <input type="checkbox" name="favorite_pet" value="Dogs">Dogs<br>             
    <input type="checkbox" name="favorite_pet" value="Birds">Birds<br>             
    <br>              
    <input type="submit" value="Submit now" />          
  </fieldset>      
</form>