Adding HTML entities using CSS content

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How do you use the CSS content property to add html entities?

I have a number of links which I make into a breadcrumb style list by adding an arrow before each.

<div class="breadcrumbs"> <a>One</a> <a>Two</a> <a>Three</a> </div> 

Which has the following style applied to it:

.breadcrumbs a:before { content: '> '; } 

The problem is that when the breadcrumb list gets long and wraps to the next line, the arrow is left on the preceding line. The obvious solution is to change the space into a non-breaking space, but this doesn't work:

.breadcrumbs a:before { content: '>&nbsp;'; } 

It actually outputs &nbsp; onto the screen. I've got around this with other strange characters (like ») by pasting the character in directly, but how do you paste a &nbsp; ?

This Question Has 8 Answeres | Orginal Question | nickf

For Example :

Example: If you want select your character , I selected "&#8620" "&#x21ac" (We use HEX values)

.breadcrumbs a:before { content: '\0021ac'; } 

Result : ↬

Thats it :)

Update: PointedEars mentions that the correct stand in for &nbsp; in all css situations would be
'\a0 ' implying that the space is a terminator to the hex string and is absorbed by the escaped sequence. He further pointed out this authoritative description which sounds like a good solution to the problem I described and fixed below.

What you need to do is use the escaped unicode. Despite what you've been told \00a0 is not a perfect stand-in for &nbsp; within CSS; so try:

content:'>\a0 '; /* or */ content:'>\0000a0'; /* because you'll find: */ content:'No\a0 Break'; /* and */ content:'No\0000a0Break'; /* becomes No&nbsp;Break as opposed to below */ 

Specifically using \0000a0 as &nbsp;. If you try, as suggested by mathieu and millikin:

content:'No\00a0Break' /* becomes No&#2571;reak */ 

It takes the B into the hex escaped characters. The same occurs with 0-9a-fA-F.

I found that the easiest way to convert symbols, such as from ▾ (&#9662;) to \25BE is to use the Microsoft calculator =)

Yes. Enable programmers mode, turn on the decimal system, enter 9662, then switch to hex and you'll get 25BE. Then just add a backslash \ to the beginning.

You have to use the escaped unicode :


.breadcrumbs a:before { content: '>\0000a0'; } 

More info on :

Here are two ways:

  • In HTML:

    <div class="ics">&#9969;</div>

This will result into ⛱

  • In Css:

    .ics::before {content: \9969;}

with HTML code <div class="ics"></div>

This also results in ⛱

CSS is not HTML. &nbsp; is a character entity reference in HTML; a stand-in for the character reference &#160;. 160 is the decimal code point of the NO-BREAK SPACE character in Unicode (actually, UCS-2; see the HTML 4.01 Specification). The hexadecimal representation of that code point is U+00A0 (160 = 10 × 161 + 0 × 160). You will find that in the Unicode Code Charts and Character Database.

In CSS you need to use a Unicode escape sequence for such characters, which is based on the hexadecimal value of the code point of a character. So you need to write

.breadcrumbs a:before { content: '>\a0'; } 

This works as long as the escape sequence comes last in a string value. If characters follow, there are two ways to avoid misinterpretation:

a) (mentioned by others) Use exactly six hexadecimal digits for the escape sequence:

.breadcrumbs a:before { content: '>\0000a0foo'; } 

b) Add one white-space (e. g., space) character after the escape sequence:

.breadcrumbs a:before { content: '>\a0 foo'; } 

(Since f is a hexadecimal digit, \a0f would otherwise mean GURMUKHI LETTER EE here, or ? if you have a suitable font.)

The delimiting white-space will be ignored, and this will be displayed > foo, where the displayed space here would be a NO-BREAK SPACE character.

The white-space approach ('\a0 foo') has the following advantages over the six-digit approach ('\0000a0foo'):

  • it is easier to type, because leading zeroes are not necessary, and digits do not need to be counted;
  • it is easier to read, because there is white-space between escape sequence and following text, and digits do not need to be counted;
  • it requires less space, because leading zeroes are not necessary;
  • it is upwards-compatible, because Unicode supporting code points beyond U+10FFFF in the future would require a modification of the CSS Specification.

Thus, to display a space after an escaped character, use two spaces in the stylesheet –

.breadcrumbs a:before { content: '>\a0 foo'; } 

– or make it explicit:

.breadcrumbs a:before { content: '>\a0\20 foo'; } 

See CSS 2.1, section "4.1.3 Characters and case" for details.

Use the hex code for a non-breaking space. Something like this:

.breadcrumbs a:before { content: '>\00a0'; } 

There is a way to paste an nbsp - open CharMap and copy character 160. However, in this case I'd probably space it out with padding, like this:

.breadcrumbs a:before { content: '>'; padding-right: .5em; } 

You might need to set the breadcrumbs display:inline-block or something, though.

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I have five years of experience in web development sector. I love to do amazing projects and share my knowledge with all.

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