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Mask Layer implemented by pure CSS and JavaScript

Source: Internet
Author: User
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<! Doctype HTML>

<HTML lang = "en" xmlns = "http://www.w3.org/1999/xhtml">
<Head>
<Meta charset = "UTF-8"/>
<Title> mask layer implemented by pure CSS and JavaScript </title>
<Style>
# Cover
{
Background: Gray;
Position: absolute;
Left: 0px;
Top: 0px;
Display: none;
Z-index: 20;
Filter: alpha (opacity = 60 );
Opacity: 0.6! Important;
}

# Close
{
Position: absolute;
Display: none;
Z-index: 21! Important;
}
</Style>

<SCRIPT>
Function show (){
VaR cover = Document. getelementbyid ("cover ");
VaR close = Document. getelementbyid ("close ");
Cover. style. width = document.doc umentelement. scrollwidth + "PX ";
Cover. style. Height = document.doc umentelement. scrollheight + "PX ";
Cover. style. Display = "Block ";
Close. style. Display = "Block ";
}
Function hide (){
VaR cover = Document. getelementbyid ("cover ");
VaR close = Document. getelementbyid ("close ");
Cover. style. Display = "NONE ";
Close. style. Display = "NONE ";
}
</SCRIPT>
</Head>
<Body>
<Div id = "cover"> </div>
<Input type = "button" onclick = "show ()" name = "name" value = "display mask layer"/>
<Div id = "close">
<Input type = "button" onclick = "Hide ()" name = "name" value = "Hide mask layer"/>
</Div>
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
<Br/>
Mask Layer implemented by pure CSS and JavaScript
</Body>
</Html>

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