How to implement overflow hiding in css

How to implement overflow hiding in css: 1. Add the "overflow: hidden;" style to the element and set it to trim and hide the overflow part when the content overflows the element box; 2. Add "text-overflow" to the element :ellipsis;" style, the trimmed content (hidden content) can be represented by the ellipsis symbol "...".

The operating environment of this article: Windows7 system, HTML5&&CSS3 version, Dell G3 computer.

If you want to realize the overflow display of ellipses in a single line of text, you should all know to use the text-overflow:ellipsis attribute. Of course, you also need to add the width attribute to be compatible with some browsing.

Implementation method:

overflow: hidden;text-overflow:ellipsis;white-space: nowrap;

The effect is as shown:

But this attribute only supports the overflow display of ellipsis for a single line of text, if we want to implement multiple lines The text overflows and displays ellipses.

Next, let’s focus on the multi-line text overflow display ellipses, as follows.

Implementation method:

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

The effect is as shown:

Applicable scope:
Due to the use of WebKit’s CSS extended attributes, this method is applicable In WebKit browsers and mobile terminals;

Note:

• -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. Commonly combined attributes:

• display: -webkit-box; Attributes that must be combined to display the object as a flexible box model.

• -webkit-box-orient must be combined with the attribute to set or retrieve the arrangement of the child elements of the flex box object.

Implementation method:

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

The effect is as shown in the figure:

This method has a wide range of application, However, ellipses will also appear when the text does not exceed the line. This method can be optimized with js. [Recommended learning:
css video tutorial]

• Set height to an integer multiple of line-height to prevent excess text from being exposed .

• Add a gradient background to p::after to prevent only half of the text from being displayed.

• Since ie6-7 does not display content content, you need to add tags to be compatible with ie6-7 (such as: …); to be compatible with ie8, you need to add: :after is replaced with :after.

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