required
attribute do in a form input?<canvas>
element require to draw graphics?placeholder
attribute do in an input element?<abbr>
element?<summary>
element do in conjunction with <details>
?accesskey
attribute?action
attribute in a <form>
specify?<script defer>
attribute do?method
attribute in a <form>
specify?<cite>
element represent?
srcset
attribute do in an <img>
tag?<mark>
element represent?target="_blank"
attribute in a link?<address>
element represent?<abbr title="...">
element do?<noscript>
tag?contenteditable
attribute do?onload
event attribute do in HTML?<embed>
element?min
attribute do in an <input>
element?<progress>
element represent?<footer>
element?autocomplete
attribute do in a form?<time>
element?<object>
element?