newline in [duplicate]

Answer 1

One way to achieve similar effect would be through CSS:

<td>Cell content.
  <div class="popup">
    This is the popup.
    <br>
    Another line of popup.
  </div>
</td>

And then use the following in CSS:

td div.popup { display: none; }
td:hover div.popup { display: block; position: absolute; }

You will want to add some borders and background to make the popup look decent, but this should sketch the idea. It has some drawbacks though, for example the popup is not positioned relative to mouse but relative to the containing cell.

Answer 2

Using 
 didn't work in my fb app. However this did, beautifully (in Chrome FF and IE):

<img src="'../images/foo.gif'" title="line 1&lt;br&gt;line 2">

Answer 3

The Extensible Markup Language (XML) 1.1 W3C Recommendation say

« All line breaks MUST have been normalized on input to #xA as described in 2.11 End-of-Line Handling, so the rest of this algorithm operates on text normalized in this way. »

The link is http://www.w3.org/TR/2006/REC-xml11-20060816/#AVNormalize

Then you can write :

<td title="lineone &#xA; linetwo &#xA; etc...">

Answer 4

If you're looking to put line breaks into the tooltip that appears on mouseover, there's no reliable crossbrowser way to do that. You'd have to fall back to one of the many Javascript tooltip code samples

Answer 5

I use the jQuery clueTip plugin for this.

Answer 6

This should be OK, but is Internet Explorer specific:

<td title="lineone
linetwo 
etc...">

As others have mentioned, the only other way is to use an HTML + JavaScript based tooltip if you're only interested in the tooltip. If this is for accessibility then you will probably need to stick to just single lines for consistency.