Abbr
<p>I love <abbr title="HyperText Markup Language">HTML</abbr>.</p>
Keyboard Input
<p>Please press <kbd>Ctrl</kbd> + <kbd>Shift</kbd> + <kbd>R</kbd> to re-render an MDN page.</p>
Picture
Contains zero or more source elements and one image element to provide alternate images for different displays/devices.
<picture>
<source media="(min-width: 650px)" srcset="img3.jpg">
<source media="(min-width: 465px)" srcset="img2.jpg">
<img src="img1.jpg" alt="Flowers">
</picture>