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Application and meaning of css unicode-bidi attribute

黄舟
黄舟Original
2017-06-20 10:39:481846browse

unicode-bidiSet the embedding related to the bidirectional algorithm

Syntax:

unicode-bidi : normal | bidi-override | embed

Parameters:

normal: Object Does not turn on additional embedding layers. For inline features, implicit reordering works across object boundaries.
embed: Object turns on additional embedding layers. direction The value of attribute specifies the embedding layer, and implicit reordering is performed inside the object
bidi-override: Reordering is strictly based on the value of the direction attribute. Ignore implicit bidirectional operation rules

Explanation:

is used to display text that is read from different directions on the same page. Used with the direction attribute.
If you want to use the direction attribute for inline text, you must set the unicode-bidi attribute to embed or bidi-override.
The corresponding script feature is unicodeBidi. Please see other books I have written.

Example:

p { direction: rtl; unicode-bidi: bidi-override; }

Notes
The unicode-bidi attribute is used together with the direction attribute.
The Unicode bidirectional algorithm automatically reverses embedded character sequences according to their intrinsic direction. For example, the basic orientation of English documents is from left to right. If multiple parts of a paragraph in a document contain a language that reads from right to left, the direction of that language will appear correctly as right-to-left. Browsers that apply the bidirectional algorithm will correctly reverse the direction of the language.
Standard Information
This property is defined in Cascading Style Sheets (CSS), Level 2 (CSS2).
Apply to

a, 
abbr, 
acronym, 
address, 
b, 
bdo, 
big, 
blockquote, 
body, 
button, 
caption, 
center, 
cite, 
code, 
col, 
colgroup, 
custom, 
dd, 
defaults, 
del, 
dfn, 
p, 
dl, 
dt, 
em, 
embed, 
fieldset, 
font, 
form, 
hn, 
i, 
img, 
input type=button, 
input type=checkbox, 
input type=file, 
input type=image, 
input type=password, 
input type=radio, 
input type=reset, 
input type=submit, 
input type=text, 
ins, 
li, 
object, 
ol, 
option, 
p, 
q, 
rt, 
ruby, 
s, 
select, 
span, 
sub, 
table, 
tbody, 
td, 
tfoot, 
th, 
thead, 
tr, 
tt, 
u, 
ul, 
var, 
xmp

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