How to implement CSS to display ellipsis when single-line or multi-line text overflows

1. Single row overflow

1. If a single line overflows, the excess part will be displayed...or intercepted. The premise must be width.
CSS: {width:xxpx;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;}, intercepted as clip;

Implementation code:

width:300px;    
overflow: hidden;    
text-overflow:ellipsis;    
whitewhite-space: nowrap;

The effect is as shown below:


However, this property only supports the display of ellipsis for overflow of single-line text. What if we want to display ellipsis for overflow of multiple lines of text?

Next, let’s focus on displaying ellipsis when multi-line text overflows, as follows.

2. Multi-line overflow

{display:-webkit-box;overflow:hidden;text-overflow:ellipsis;-webkit-line-clamp:2;-webkit-box-orient:vertical;}

Implementation method:

display: -webkit-box;    
-webkit-box-orient: vertical;    
-webkit-line-clamp: 3;    
overflow: hidden;

The effect is as shown below:


Scope of application:

Since WebKit's CSS extended properties are used, this method is applicable to WebKit browsers and mobile devices;

Note:

1.-webkit-line-clamp is used to limit the number of lines of text displayed in a block element. To achieve this effect, it needs to be combined with other WebKit properties. Common combination properties:
2.display: -webkit-box; This must be combined with the property to display the object as an elastic box model.
3.-webkit-box-orient must be combined with the property to set or retrieve the arrangement of the child elements of the telescopic box object.

Implementation method:

p{position: relative; line-height: 20px; max-height: 40px; overflow: hidden;}    
p::after{content: "..."; position: absolute; bottombottom: 0; rightright: 0; padding-left: 40px;    
background: -webkit-linear-gradient(left, transparent, #fff 55%);    
background: -o-linear-gradient(rightright, transparent, #fff 55%);    
background: -moz-linear-gradient(rightright, transparent, #fff 55%);    
background: linear-gradient(to rightright, transparent, #fff 55%);    
}

Scope of application:
This method has a wide range of applications, but ellipsis will appear when the text does not exceed the line. This method can be optimized in combination with js.

Note:

1. Set the height to an integer multiple of the line-height to prevent the text that exceeds the height from being exposed.
2. Adding a gradient background to p::after can prevent the text from being displayed only halfway.
3. Since IE6-7 does not display content, you need to add tags to be compatible with IE6-7 (such as: <span>…<span/>); to be compatible with IE8, you need to replace ::after with :after.

123WORDPRESS.COM editor adds:

IE-based browsers must define line-height and height, and -webkit-line-clamp means a few lines, for example

line-height: 20px;

max-height: 40px;

display: -webkit-box;

-webkit-box-orient: vertical;

-webkit-line-clamp: 2;

overflow: hidden;

-webkit-line-clamp

-webkit-line-clamp is an unsupported WebKit property that does not appear in the CSS draft specification.
Limits the number of lines of text displayed in a block element. To achieve this effect, it needs to combine other exotic WebKit properties. Common combination properties:
display: -webkit-box; is a required attribute that displays the object as an elastic box model.
-webkit-box-orient must be combined with the property to set or retrieve the arrangement of the child elements of the flex box object.
text-overflow can be used to hide the text that exceeds the range with ellipsis "..." in the case of multiple lines of text.