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JS + CSS: How to show the DIV layer with a gradual mouse gradient, cssdiv

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Author: User
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JS + CSS: How to show the DIV layer with a gradual mouse gradient, cssdiv

This article describes how to use JS + CSS to display the DIV layer with a gradient sensor mouse. Share it with you for your reference. The specific implementation method is as follows:

Copy codeThe Code is as follows: <! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<Html xmlns = "http://www.w3.org/1999/xhtml">
<Head>
<Title> DIV layer for JS + CSS-implemented inductive mouse gradient display </title>
<Style>
# Tip {
Position: absolute;
Left: 90px;
Width: 0px;
Height: 0px;
Color: # FFF;
Font-size: 12px;
Background-color: #000;
Border: 1px solid # DEF;
Filter: Alpha (Opacity = 0 );
Opacity: 0;
Z-index: 999;
}
</Style>
<Script type = "text/javascript">
<! --
// Define the function "Get the specified dom node" because of its high Reuse Rate
Function $ (d) {return document. getElementById (d );}
// Control the gradual display of div
Var I = 0;
Function change_show (){
Var obj = $ ("tip ");
I = I + 5; // display speed gradually
Obj. style. filter = "Alpha (Opacity =" + I + ")"; // The transparency gradually decreases
Obj. style. opacity = I/100; // compatible with FireFox
If (I> = 100 ){
ClearInterval (s );
I = 0;
}
}
// The Control div disappears gradually
Var j = 100;
Function change_hidden (){
Var obj = $ ("tip ");
J = J-5; // gradual disappearance speed
Obj. style. filter = "Alpha (Opacity =" + j + ")"; // The transparency increases.
Obj. style. opacity = j/100; // compatible with FireFox
If (j <= 0 ){
ClearInterval (h );
// Obj. style. display = "none ";
J = 100;
}
}
// Control change_show () behavior
Var s;
Function show (x ){
If (s) {clearInterval (s );}
$ ("Tip"). style. display = "block ";
S = setInterval (change_show, 1 );
}
// Control change_hidden () behavior
Function hidden (x ){
$ ("Tip"). innerHTML = "";
H = setInterval (change_hidden, 1 );
}
// -->
</Script>
</Head>
<Body>
<Div id = "tip" style = "background-color: blue; width: 48%; height: 48%;" onmouseover = "show (this ); "onmouseout =" hidden (this); ">
</Div>
<Br/>
<Br> move the mouse over here, and the div layer gradient display <br> </Body>
</Html>

I hope this article will help you design javascript programs.

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

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