text-overflow - CSS: Cascading Style Sheets 编辑

The text-overflow CSS property sets how hidden overflow content is signaled to users. It can be clipped, display an ellipsis ('…'), or display a custom string.

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The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.

The text-overflow property doesn't force an overflow to occur. To make text overflow its container you have to set other CSS properties: overflow and white-space. For example:

overflow: hidden;
white-space: nowrap;

The text-overflow property only affects content that is overflowing a block container element in its inline progression direction (not text overflowing at the bottom of a box, for example).

Syntax

The text-overflow property may be specified using one or two values. If one value is given, it specifies overflow behavior for the end of the line (the right end for left-to-right text, the left end for right-to-left text). If two values are given, the first specifies overflow behavior for the left end of the line, and the second specifies it for the right end of the line.

Each value is specified as one of:

• one of the keyword values: clip, ellipsis, fade
• the function fade(), which is passed a <length> or a <percentage> to control the fade distance
• a <string>.

Values

clip

The default for this property. This keyword value will truncate the text at the limit of the content area, therefore the truncation can happen in the middle of a character. To clip at the transition between characters you can specify text-overflow as an empty string, if that is supported in your target browsers: text-overflow: '';.

ellipsis

This keyword value will display an ellipsis ('…', U+2026 Horizontal Ellipsis) to represent clipped text. The ellipsis is displayed inside the content area, decreasing the amount of text displayed. If there is not enough space to display the ellipsis, it is clipped.

<string>

The <string> to be used to represent clipped text. The string is displayed inside the content area, shortening the size of the displayed text. If there is not enough space to display the string itself, it is clipped.

fade

This keyword clips the overflowing inline content and applies a fade-out effect near the edge of the line box with complete transparency at the edge.

fade( <length> | <percentage> )

This function clips the overflowing inline content and applies a fade-out effect near the edge of the line box with complete transparency at the edge.

The argument determines the distance over which the fade effect is applied. The <percentage> is resolved against the width of the line box. Values lower than 0 are clipped to 0. Values greater than the width of the line box are clipped to the width of the line box.

Formal definition

Initial value	clip
Applies to	block container elements
Inherited	no
Computed value	as specified
Animation type	discrete

Formal syntax

[ clip | ellipsis | <string> ]{1,2}

Examples

CSS

p {
  width: 200px;
  border: 1px solid;
  padding: 2px 5px;

  /* BOTH of the following are required for text-overflow */
  white-space: nowrap;
  overflow: hidden;
}

.overflow-visible {
  white-space: initial;
}

.overflow-clip {
  text-overflow: clip;
}

.overflow-ellipsis {
  text-overflow: ellipsis;
}

.overflow-string {
  /* Not supported in most browsers,
     see the 'Browser compatibility' section below */
  text-overflow: " [..]";
}

HTML

<p class="overflow-visible">Lorem ipsum dolor sit amet, consectetur adipisicing elit.</p>
<p class="overflow-clip">Lorem ipsum dolor sit amet, consectetur adipisicing elit.</p>
<p class="overflow-ellipsis">Lorem ipsum dolor sit amet, consectetur adipisicing elit.</p>
<p class="overflow-string">Lorem ipsum dolor sit amet, consectetur adipisicing elit.</p>

Result

Note: Live results in the following table may be shown incorrectly due to a limitation of the MDN Editor which removes the all contents of style attributes which have text-overflow properties with string value.

CSS value	direction: ltr		direction: rtl
	Expected Result	Live result	Expected Result	Live result
visible overflow	1234567890	1234567890	0987654321	1234567890
text-overflow: clip		1234567890		1234567890
text-overflow: ''	12345	1234567890	54321	1234567890
text-overflow: ellipsis	1234…	1234567890	…4321	1234567890
text-overflow: '.'	1234.	1234567890	.4321	1234567890
text-overflow: clip clip	123456	1234567890	654321	1234567890
text-overflow: clip ellipsis	1234…	1234567890	6543…	1234567890
text-overflow: clip '.'	1234.	1234567890	6543.	1234567890
text-overflow: ellipsis clip	…3456	1234567890	…4321	1234567890
text-overflow: ellipsis ellipsis	…34…	1234567890	…43…	1234567890
text-overflow: ellipsis '.'	…34.	1234567890	…43.	1234567890
text-overflow: ',' clip	,3456	1234567890	,4321	1234567890
text-overflow: ',' ellipsis	,34…	1234567890	,43…	1234567890
text-overflow: ',' '.'	,34.	1234567890	,43.	1234567890

Specifications

Specification	Status	Comment
CSS Overflow Module Level 4		Added the values <string> and fade and the fade() function
CSS Overflow Module Level 3 The definition of 'text-overflow' in that specification.	Working Draft	Initial definition

A previous version of this interface reached the Candidate Recommendation status. As some not-listed-at-risk features needed to be removed, the spec was demoted to the Working Draft level, explaining why browsers implemented this property unprefixed, though not at the CR state.

Browser compatibility

BCD tables only load in the browser

See also

• Related CSS properties: overflow, white-space
• CSS properties that control line breaks in words: overflow-wrap, word-break