This plugin adds variations to some core blocks and makes it easy to use blocks with dummy text and dummy images already entered.
It’s very lightweight because it just adds a “variation” of the core block.
<h3>Available Blocks</h3>
<ul>
<li>Lorem Paragraph</li>
<li>Lorem Paragraph (Long)</li>
<li>Lorem Heading</li>
<li>Lorem List</li>
<li>Lorem image</li>
<li>Lorem Columns</li>
<li>Lorem Media & Text</li>
</ul>

Lorem Ipsum Blocks

A plugin that makes it easy to use blocks with dummy text.

rkpolin

This is awesome placeholder plugins. This plugins automatically animate and back type writing effect your placeholder.
Compititable with all browser and contact form 7. But need to put placeholder before placeholder text in contact form 7. like [text text-948 placeholder “This is placeholder text”]
Features: 
1. Placeholder text fade backward. 
2. All browser support. 
3. Very lightweight plugins only 3KB. 
4. Contact form 7 supported.
You can see demo here <a href="http://facebond.com/plugins/rkp-awesome-placeholder/" rel="nofollow ugc">DEMO</a>
If you like this plugin please leave your ratings.
<h3>A brief Markdown Example</h3>
Ordered list:
<ol>
<li>Placeholder text fade backward.</li>
<li>All browser support.</li>
<li>Very lightweight plugins only 3KB.</li>
<li>Contact form 7 supported.</li>
</ol>

RKP Awesome Placeholder

This is awesome placeholder plugins. This plugins automatically animate and back type writing effect your placeholder.

Lorem Ipsum Blocks vs RKP Awesome Placeholder