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The text-align
CSS property describes how inline content like text is aligned in its parent block element. text-align
does not control the alignment of block elements, only their inline content.
Initial value | start , or a nameless value that acts as left if direction is ltr , right if direction is rtl if start is not supported by the browser. |
---|---|
Applies to | block containers |
Inherited | yes |
Media | visual |
Computed value | as specified, except for the match-parent value which is calculated against its parent's direction value and results in a computed value of either left or right |
Animatable | no |
Canonical order | order of appearance in the formal grammar of the values |
Syntax
/* Keyword values */ text-align: left; text-align: right; text-align: center; text-align: justify; text-align: justify-all; text-align: start; text-align: end; text-align: match-parent; /* Block alignment values (Non-standard syntax) */ text-align: -moz-center; text-align: -webkit-center; /* Global values */ text-align: inherit; text-align: initial; text-align: unset;
Values
start
- The same as
left
if direction is left-to-right andright
if direction is right-to-left. end
- The same as
right
if direction is left-to-right andleft
if direction is right-to-left. left
- The inline contents are aligned to the left edge of the line box.
right
- The inline contents are aligned to the right edge of the line box.
center
- The inline contents are centered within the line box.
justify
- The inline contents are justified. Text should be spaced to line up its left and right edges to the left and right edges of the line box, except for the last line.
justify-all
- Same as
justify
, but also forces the last line to be justified. match-parent
- Similar to
inherit
, but the valuesstart
andend
are calculated according the parent'sdirection
and are replaced by the adequateleft
orright
value.
Formal syntax
start | end | left | right | center | justify | match-parent
Examples
Left alignment
HTML
<p class="example"> Integer elementum massa at nulla placerat varius. Suspendisse in libero risus, in interdum massa. Vestibulum ac leo vitae metus faucibus gravida ac in neque. Nullam est eros, suscipit sed dictum quis, accumsan a ligula. </p>
CSS
.example { text-align: left; border: solid; }
Result
Centered text
HTML
<p class="example"> Integer elementum massa at nulla placerat varius. Suspendisse in libero risus, in interdum massa. Vestibulum ac leo vitae metus faucibus gravida ac in neque. Nullam est eros, suscipit sed dictum quis, accumsan a ligula. </p>
CSS
.example { text-align: center; border: solid; }
Result
Justify
HTML
<p class="example"> Integer elementum massa at nulla placerat varius. Suspendisse in libero risus, in interdum massa. Vestibulum ac leo vitae metus faucibus gravida ac in neque. Nullam est eros, suscipit sed dictum quis, accumsan a ligula. </p>
CSS
.example { text-align: justify; border: solid; }
Result
Notes
The standard-compatible way to center a block itself without centering its inline content is setting the left and right margin
to auto
, e.g.:
.something { margin: auto; }
.something { margin: 0 auto; }
.something { margin-left: auto; margin-right: auto; }
Specifications
Specification | Status | Comment |
---|---|---|
CSS Logical Properties Level 1 The definition of 'text-align' in that specification. |
Editor's Draft | No changes |
CSS Text Level 3 The definition of 'text-align' in that specification. |
Working Draft | Added the start , end , and match-parent values. Changed the unnamed initial value to start (which it was). |
CSS Level 2 (Revision 1) The definition of 'text-align' in that specification. |
Recommendation | No changes |
CSS Level 1 The definition of 'text-align' in that specification. |
Recommendation | Initial definition |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support (left , right , center and justify ) |
1.0 | 1.0 (1.7 or earlier) | 3.0 | 3.5 | 1.0 (85) |
Block alignment values | 1.0-webkit | 1.0 (1.7 or earlier)-moz[1] | No support | No support | 1.0 (85)-khtml 1.3 (312)-webkit [1] |
start |
1.0 | 1.0 (1.7 or earlier) | No support | (Yes) | 3.1 (525) |
end |
1.0 | 3.6 (1.9.2) | No support | (Yes) | 3.1 (525) |
match-parent |
16 | 40 (40) | No support | No support | No support |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | ? | ? | ? | ? | ? | ? |
Block alignment values | ? | ? | ? | ? | ? | ? |
start |
? | ? | ? | ? | ? | ? |
end |
? | ? | ? | ? | ? | ? |
match-parent |
? | ? | 40.0 (40) | ? | ? | ? |
true (non-standard syntax) |
No support | No support | ? | No support | No support | No support |
[1] Both WebKit and Gecko support a prefixed version of left
, center
, and right
, that applies not only to inline content but also to block elements. This is used to implement the legacy align
attributes on table elements and <center>
. Do not use these on production Web sites.
See also
Etiquetas y colaboradores del documento
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Última actualización por:
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