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Using CSS properties to visibility and opacity in place of mouse-over jquery events

Source: Internet
Author: User
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has been using the jquery hover () function to write the mouse through the event, these days found that other peers directly using CSS is done. I tried it under the line:

Of course, there is no precondition, it needs to be used with some positional attributes (Position/top/left). The code is as follows:

<!DOCTYPE HTML><HTMLLang= "en"><Head>   <MetaCharSet= "UTF-8">   <title>Title</title>   <Linkrel= "stylesheet"href= "Css/bootstrap.css" />   <style>. Outer{position:relative;width:150px;   }. Link{padding:0 18px;Height:50px;Display:Block;Z-index:2;background:#373d41;Border-right:1px solid #2a2f32;Color:#fff;font-size:14px;Line-height:50px;text-decoration:None;   }. Link:hover{background:#373d41}. Appear-hide{position:Absolute;Top:50px; Left:0;background:#ccc;Color:#000;Opacity:0;Visibility:Hidden;    }. Outer:hover. Appear-hide{Opacity:1;Visibility:Visible;    }. Test{Margin-top:20px}   </style></Head><Body>   <Divclass= "outer">      <aclass= "link"href= "javascript:;">Click Show or hide</a>      <Divclass= "Appear-hide">         <P>CSS, CSS3</P>         <P>HTML, HTML5</P>         <P>JavaScript, ES6</P>         <P>HTTP protocol</P>         <P>Performance optimization</P>         <P>A back-end language</P>         <P>Better way to write code</P>         <P>Offline development and code publishing</P>      </Div>   </Div>   <Divclass= "Test">      <P>CSS, CSS3</P>      <P>HTML, HTML5</P>      <P>JavaScript, ES6</P>      <P>HTTP protocol</P>      <P>Performance optimization</P>      <P>A back-end language</P>      <P>Better way to write code</P>      <P>Offline development and code publishing</P>   </Div></Body></HTML>
View Code
    • As for why you should work with positional properties, you can first understand the visibility property: Visibility Property _w3cschool
    • Another property Opacity:opacity property _w3cschool, for the W3cschool on a place did not see, add the CSS after testing, found that. Test's child element P does not continue its Opacity property value.

A place that is not clear:

Add the CSS code:

    . test {       margin-top:20px;       opacity:0.5;    }

The child element p does not continue with its Opacity property value:

Summary: Of course, this is just a simple mouse through the display of events, more complex or need to use jquery and other to write.

Using CSS properties to visibility and opacity in place of mouse-over jquery events

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