Check out example codes for "html chkbox". It will help you in understanding the concepts better.

Code Example 1

  <input type="checkbox" id="vehicle1" name="vehicle1" value="Bike">
  <label for="vehicle1"> I have a bike</label><br>
  <input type="checkbox" id="vehicle2" name="vehicle2" value="Car">
  <label for="vehicle2"> I have a car</label><br>
  <input type="checkbox" id="vehicle3" name="vehicle3" value="Boat">
  <label for="vehicle3"> I have a boat</label>

Code Example 2

<input type="checkbox" name="vehicle1" value="Bike"> I have a bike<br>
 <input type="checkbox" name="vehicle2" value="Car"> I have a car<br>
<input type="checkbox" name="vehicle3" value="Boat" 
  checked> I have a boat<br>

Code Example 3

<input type="checkbox">

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