neilgee

This plugin adds support for placeholder text in browsers that don’t support this HTML5 feature including Internet Explorer 6.
The plugin just activates the placeholders.js script by James Allardice http://jamesallardice.github.io/Placeholders.js/
There is no further configuration required.
For HTML input elements use the placeholder attribute and add a value, this value is removed when a user inputs the field. http://coolestguidesontheplanet.com/add-a-label-into-a-text-input-field-in-a-html-form/#html5
The script is 4KB and is set to load in the footer and has no library dependencies.
<h3>Usage</h3>
Just activate the plugin which loads the script, their is no further configuration.

Placeholder Text

This plugin adds support for placeholder text in browsers that don't support this HTML5 feature.

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.

Placeholder Text vs RKP Awesome Placeholder