CSS Reference

"unicode-bidi" - css property (v. css 2)

  • The unicode-bidi property along with the 'direction' property allows us to write the character stream in an opposite direction.
  • In some languages, we may need the text to appear in a mixed orientation and the unicode-bidi property help us to achieve that.
  • Initial value: normal
  • The property is not inherited
  • HTML usage: all elements
  • Browsers that support the unicode-bidi - property :
    Internet Explorer Mozilla Firefox Opera Google Chrome Apple Safari

Possible unicode-bidi values:

values Comments CSS
normal The element does not open an additional level of embedding with respect to the bidirectional algorithm 2
embed If the element is inline-level, this value opens an additional level of embedding with respect to the bidirectional algorithm. 2
bidi-override For inline-level elements this creates an override. For block-level, table-cell, table-caption, or inline-block elements this creates an override for inline-level descendants not within another block-level, table-cell, table-caption, or inline-block element. This means that inside the element, reordering is strictly in sequence according to the 'direction' property; the implicit part of the bidirectional algorithm is ignored. 2
inherit Will inherit the value from parent specification. 2

Property "unicode-bidi" example:

<!DOCTYPE HTML >
<html  >
  <head>
    <title>Test</title>
    <style type="text/css">
      div {border: blue 1px solid; color:green;
           padding: 4px 4px 4px 4px; width: 400px;}
      .rtl1 {direction: rtl;}
      .rtl2 {direction: rtl;
             unicode-bidi: bidi-override;}
    </style>
  </head>
  <body>
    direction: rtl;<br>
    <div class='rtl1' >In addition, it specifies
      the direction of table column layout,
      the direction of horizontal overflow,
      and the position of an incomplete last
      line in a block in case of 'text-align' : justify.
    </div>
    <br>
    direction: rtl; with unicode-bidi: bidi-override;<br>
    <div class='rtl2'  >For the 'direction'
      property to affect reordering in inline-level
      elements, the 'unicode-bidi' property's value
      must be 'embed' or 'bidi-override' .
    </div>
    <br>
    The last text in left to right direction is:<br>
    <div >For the 'direction'
      property to affect reordering in inline-level
      elements, the 'unicode-bidi' property's value
      must be 'embed' or 'bidi-override'.
    </div>
  </body>
</html>

Javascript access:

// To SET values ([o] is the target object)
[o].style.unicodeBidi="unicode-bidi value"
// To GET values you must first get the computed style object
// To get that object in IE or Opera:
var cStyle=[o].currentStyle;
// To get that object in Firefox, Chrome or Safari (w3c-type):
var cStyle=window.getComputedStyle([o],null)
// To GET the property value:;
var value=cStyle.unicodeBidi;
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