<abbr title="United States of America">USA</abbr>
when you go on USA with your cursor it shows up a text box how we can edit that text box need CSS TAG
<abbr title="United States of America">USA</abbr>
when you go on USA with your cursor it shows up a text box how we can edit that text box need CSS TAG
 
    
    Want to do it custom ?
CSS3 :
abbr:hover:before {
   content: attr(title);
}
Demo : http://jsfiddle.net/NzntY/
or change your attr whatever you want...
<abbr data-yeah="United States of America">USA</abbr>
So
content: attr(data-yeah);
 
    
    You can use a custom Tooltip if you want to be able to style a text box that appears on hover. See:
See this DEMO, which has the following jQuery to add the tooltip:
$(function () {
    $(document).tooltip({
    });
});
With these CSS classes:
.ui-tooltip, .arrow:after {
    background: black;
    border: 2px solid white;
}
.ui-tooltip {
    padding: 10px 20px;
    color: white;
    border-radius: 20px;
    font: bold 14px"Helvetica Neue", Sans-Serif;
    text-transform: uppercase;
    box-shadow: 0 0 7px black;
}
And remember you will need to include a reference the jQuery UI:
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
