Answers for "label for button html"

html input label

<!-- By reference -->
<label for="first_name">First Name</label>
<input type="text" id="first_name" name="first_name">

<!-- By wrapping -->
<label>First Name
  <input type="text" name="first_name">
</label>

button label html

Α button's label is set inside the element's tags.

<button>This is my label.</button>