I'm currently adding verbose tooltips to our site, and I'd like (without having to resort to a whizz-bang jQuery plugin, I know there are many!) to use carriage returns to format the tooltip.
To add the tip I'm using the title attribute. I've looked around the usual sites and using the basic template of:
<a title='Tool?Tip?On?New?Line'>link with tip</a>
I've tried replacing the ? with:
<br />&013; / \r\nEnvironment.NewLine (I'm using C#)None of the above works. Is it possible?
It’s simple: just press Enter!
<a href="#" title='Tool
Tip
On
New
Line'>link with tip</a>\x0A (byte) is the character-code that corresponds with a newline. Same for \u000A (unicode). \n is also newline. –
Damian title attribute in Firefox and Chrome, and they were just presented literally in the tooltip. Afterwards, i realised you were probably using that syntax as a way of communicating which characters (not escape sequences) should be used. My comment is for saving other people time by warning them to not try to put your escape sequences in their HTML so they don't waste time like I did. –
Rosati {...} and "..." attribute values. –
Jasun The latest specification allows line feed characters, so a simple line break inside the attribute or entity (note that characters # and ; are required) are OK.
and . would not honor intended "line breaks" in chrome version 50.0.2661.94 (64-bit). is working well in current versions of chrome, firefox and opera (all for 64-bit Ubuntu) and internet explorer version 11.0 and some change on windows. –
Intransitive It’s simple: just press Enter!
<a href="#" title='Tool
Tip
On
New
Line'>link with tip</a>\x0A (byte) is the character-code that corresponds with a newline. Same for \u000A (unicode). \n is also newline. –
Damian title attribute in Firefox and Chrome, and they were just presented literally in the tooltip. Afterwards, i realised you were probably using that syntax as a way of communicating which characters (not escape sequences) should be used. My comment is for saving other people time by warning them to not try to put your escape sequences in their HTML so they don't waste time like I did. –
Rosati {...} and "..." attribute values. –
Jasun Try character 10. Until January 2015 it wouldn't work in Firefox.
The text is displayed (if at all) in a browser dependent manner. Small tooltips work on most browsers. Long tooltips and line breaking work in IE and Safari (use
or for a new newline). Firefox and Opera do not support newlines. Firefox does not support long tooltips.
http://modp.com/wiki/htmltitletooltips
Firefox now supports using to insert a line break in an HTML title attribute. See the snippet example below.
<a href="#" title="Line 1 Line 2 Line 3">Hover for multi-line title</a> in a title attribute to insert a line break. –
Unaccustomed <title>. Has anybody had more success with that? Tried the above/below mention char codes, none seem to work. –
Mcsweeney Tested this in IE, Chrome, Safari, Firefox (latest versions 2012-11-27):
Works in all of them...
is the unix linefeed just as it's the windows linefeed. Similarly, is the newline for both platforms. The spec specifies the linefeed (LF) char which is of course on both (all?) platforms. –
Enterprise LF (which is kinda standard linefeed across protocols and tools), CR was only used by old Macs (and other obscure platforms) and seems out of place. –
Placoid , although apparently works in many circumstances as well. –
Enterprise Also worth mentioning, if you are setting the title attribute with JavaScript like this:
divElement.setAttribute("title", "Line one Line two");
It won't work. You have to replace that ASCII decimal 10 with a ASCII hexadecimal A in the way it's escaped with JavaScript. Like this:
divElement.setAttribute("title", "Line one\x0ALine two");
\n means char code 10 anyway) –
Tivoli As of Firefox 12 they now support line breaks using the line feed HTML entity:
<span title="First line Second line">Test</span>
This works in IE and is the correct according to the HTML5 spec for the title attribute.
As a contribution to the 
 solution, we can also use 	 for tabs if you ever need to do something like this.
<button title="My to-do list:
	-Item 2
	-Item 3
	-Item 4
		-Subitem 1">TEST</button>
If you are using jQuery:
$(td).attr("title", "One \n Two \n Three");
will work.
It was tested in Internet Explorer 9: working.
On Chrome 79, does not work anymore.
I was successful with:
This works in all major browsers.
will work on all majors browsers (IE included)

 <----- This is the text needed to insert a carriage return.
Here's a demo: http://jsfiddle.net/rzea/vsp6840b/3/
HTML used:
<a href="#" title="First Line
Second Line">Multiline Tooltip</a>
<br>
<br>
<a href="#" title="List:
• List item here
• Another list item here
• Aaaand another list item, lol">Unordered list tooltip</a>
We had a requirement where we needed to test all of these, and here is what I wish to share:
document.getElementById("tooltip").setAttribute("title", "Tool\x0ATip\x0AOn\x0ANew\x0ALine")<p title='Tool
Tip
On
New
Line'>Tooltip with <pre>
new
line</pre> Works in all browsers</p>
<hr/>
<p title="Tool Tip On New Line">Tooltip with <code>&#13;</code> Not works Firefox browsers</p>
<hr/>
<p title='Tool Tip On New Line'>Tooltip with <code>&#10;</code> Works in some browsers</p>
<hr/>
<p title='Tool
Tip
On
New
Line'>Tooltip with <code>&#xD;</code> May work in some browsers</p>
<hr/>
<p id='tooltip'>Tooltip with <code>document.getElementById("tooltip").setAttribute("title", "Tool\x0ATip\x0AOn\x0ANew\x0ALine")</code> May work in some browsers</p>
<hr/>
<p title="List:
• List item here
• Another list item here
• Aaaand another list item, lol">Tooltip with <code>• </code>Unordered list tooltip</p>
<hr/>
<p title='Tool\nTip\nOn\nNew\nLine'>Tooltip with <code>\n</code> May not work in modern browsers</p>
<hr/>
<p title='Tool\tTip\tOn\tNew\tLine'>Tooltip with <code>\t</code> May not work in modern browsers</p>
<hr/>
<p title='Tool
Tip
On
New
Line'>Tooltip with <code>&#013;</code> Works in most browsers</p>
<hr/>This 
 should work if you just use a simple title attribute.
On Bootstrap popovers, just use data-html="true" and use HTML in the data-content attribute.
<div title="Hello 
World">hover here</div>I don't believe it is. Firefox 2 trims long link titles anyway and they should really only be used to convey a small amount of help text. If you need more explanation text I would suggest that it belongs in a paragraph associated with the link. You could then add the tooltip JavaScript code to hide those paragraphs and show them as tooltips on hover. That's your best bet for getting it to work cross-browser IMO.
On Chrome 16, and possibly earlier versions, you can use "\n". As a side note, "\t" also works.
Just use this:
<a title='Tool
Tip
On
New
Line'>link with tip</a>
You can add new line on title by using this 
.
As for whom didn't work for, you have to style the element on which lines are visible in as: white-space: pre-line;
It is referenced from GuitarWorker's answer to Add line break within tooltips.
a[title]? –
Passus Just use JavaScript. Then it is compatible with most and older browsers.
Use the escape sequence \n for newline.
document.getElementById("ElementID").title = 'First Line text \n Second line text'
According to this article on the W3C website:
CDATA is a sequence of characters from the document character set and may include character entities. User agents should interpret attribute values as follows:
- Replace character entities with characters,
- Ignore line feeds,
- Replace each carriage return or tab with a single space.
This means that (at least) CR and LF won't work inside the title attribute. I suggest that you use a tooltip plugin. Most of these plugins allow arbitrary HTML to be displayed as an element's tooltip.
Much nicer looking tooltips can be created manually and can include HTML formatting.
<!DOCTYPE html>
<html>
<style>
.tooltip {
position: relative;
display: inline-block;
border-bottom: 1px dotted black;
}
.tooltip .tooltiptext {
visibility: hidden;
width: 120px;
background-color: #555;
color: #fff;
text-align: center;
border-radius: 6px;
padding: 5px 0;
position: absolute;
z-index: 1;
bottom: 125%;
left: 50%;
margin-left: -60px;
opacity: 0;
transition: opacity 0.3s;
}
.tooltip .tooltiptext::after {
content: "";
position: absolute;
top: 100%;
left: 50%;
margin-left: -5px;
border-width: 5px;
border-style: solid;
border-color: #555 transparent transparent transparent;
}
.tooltip:hover .tooltiptext {
visibility: visible;
opacity: 1;
}
</style>
<body style="text-align:center;">
<h2>Tooltip</h2>
<p>Move the mouse <a href="#" title="some text
more and then some">over</a> the text below:</p>
<div class="tooltip">Hover over me
<span class="tooltiptext">Tooltip text
some <b>more</b><br/>
<i>and</i> more</span>
</div>
<div class="tooltip">Each tooltip is independent
<span class="tooltiptext">Other tooltip text
some more<br/>
and more</span>
</div>
</body>
</html>
This is taken from the W3Schools post on this. Experiment with the above code here.
In the case of ASP.NET MVC, you can just store the title as a variable, as \r\n, and it'll work.
@{
var logTooltip = "Sunday\r\nMonday\r\netc.";
}
<h3 title="@logTooltip">Logs</h3>
There are multiple ways to do this. 
 or 
 depending on the browser. But the following example works for me on my Google Chrome and Firefox.
<a href="javascript:;" title="Tooltip Line One Tooltip Line Two Tooltip Line Three">Tooltip</a>I was directed to this page while searching for a solution to display breakline in Bootstrap tooltips. Bootstrap tooltips are displayed when data-toggle="tooltip" is added to a HTML tag.
Finally, I found out that a data-html="true" should be added to the tag, and doing so the HTML inside your title will be rendered. Then use <br> to breakline. Checkout the samples below:
Before (not showing any breakline):
<i class="bi bi-x-circle" data-toggle="tooltip" data-placement="top" title="test1 <br> test2"></i>
After (showing breakline):
<i class="bi bi-x-circle" data-toggle="tooltip" data-html="true" data-placement="top" title="test1 <br> test2"></i>
- Tip for Laravel and Blade programmers: You can convert \n to <br> with nl2br("string") function.
- The solutions above have been tested in Google Chrome 98.
Using \x0A worked for me to get newline in title/tooltip on mouse hover.
FILENAME: news.php
<span onmouseover="getInfo(this,'06-APR-22')" data-html="true">Day</span>
FILENAME: news.php
<script>
function getInfo(x, dateVal) {
var html = $.ajax({
type: "POST",
url: "report/get-info.php",
data: {
'dateVal': dateVal,
},
success: function(response) {
x.setAttribute('title', response );
}
});
}
</script>
FILENAME: get-info.php
<?php
$tmp = $_POST['dateVal'];
$dateVal = date("m/d/Y", strtotime($tmp));
$querySelectCode = "SELECT INFO_ID, INFO_NAME FROM INFORMATION
WHERE TRUNC(DP.DATE_TIME) = TO_DATE('$dateVal','MM/DD/YYYY') ";
$stmtSelectcode = oci_parse($dbConn, $querySelectCode);
if ( ! oci_execute($stmtSelectcode) ){
$err = oci_error($stmtSelectcode);
trigger_error('Query failed: ' . $err['message'], E_USER_ERROR);
}
$INFO_ID = array();
while(oci_fetch($stmtSelectcode)){
$INFO_ID[] = oci_result($stmtSelectcode, 'INFO_ID');
$INFO_NAME[] = oci_result($stmtSelectcode, 'INFO_NAME');
}
for($index=0 ; $index < count($INFO_ID) ; $index++)
{
echo $INFO_NAME[$index ] . "\x0A" ;
}
?>
It is a hack, but it works - (tested on Google Chrome and mobile)
Just add non-breaking space, , till it breaks - you might have to limit the tooltip size depending on the amount of content but for small text messages this works:
etc
I tried everything above and this is the only thing that worked for me.
I have tried with to display the title text on a new line and it’s working like a charm.
I am on Firefox 68.7.0 ESR and the 
 doesn't work. Breaking the lines via <CR> did work, so I am going with that since it simple and forward.
I.e.,
<option title="Constraint PSC/SCS/Activity
Definition Constraint Checker
Database Start Notifier">CnCk
The "just press enter" solution didn't work here, so the good old vanilla JavaScript seems a pretty efficient and clean way.
function customTitle(event, textHeader, text){
let eventOrigin = event.target || event.srcElement;
eventOrigin.title = textHeader + '\n\n' + text;
}
And on element onmouseover:
onmouseover="customTitle(event, 'Some Caput', 'Some more or less complete description');"
Voilà! It works on Google Chrome and Firefox (which does not exclude others; I just didn't check it).
If you are trying to do this in a React project where you are rendering in the below format:
title={`First line of text ${varOne} Second line of text ${varTwo} Third line of text ${varThree}`}
Then , and similar solutions don't work. They will actually render as text.
Instead actually creating the text as required is a better option. An example for better understanding:
title={`First line of text ${varOne}
Second line of text ${varTwo}
Third line of text ${varThree}`}
Make sure to remove tabs/space indentations before "Second line of text" and "Third line of text". Otherwise they will render as well.
It was tested on Google Chrome 96 and Firefox 95.0b12 (Developer Edition, because, well why not). It should work on most modern browsers as well.
Just sharing small bug I saw:
In Chrome 103 with this html:
<!DOCTYPE html>
<html>
<body>
<select title="Line 1 : Line 2">
<option value="0">test</option>
</select>
</body>
</html>I see this:
On screenshot - two weird characters after "Line 1 :" text, first line.
Fix to this: (I have no idea which is correct/valid but all of them works as fix (in Chrome 103))
Line 1 : before first fix it to full line title="Line 1 : Line 2" after Line 1 : before first to "Carriage Return symbol" will fix itUse data-html="true" and apply <br>.
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. Then put spaces where you want the line breaks. You may also need to add a bunch of characters before your space (line break). – Harmon