JS+CSS realizes a complete example of popping up a DIV box after the mouse passes (with buffering animation gradient effect)

JS+CSS realizes a complete example of popping up a DIV box after the mouse passes (with buffering animation gradient effect)_javascript skills

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May 16, 2016 pm 03:08 PM

cssjsbuffermouse over

The example in this article describes the effect of JS+CSS to pop up a DIV box when the mouse passes over it. Share it with everyone for your reference, the details are 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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>js+CSS实现表格渐变</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">
<!--
//定义“获得指定dom节点”的函数，因为其重用率高
function $(d){return document.getElementById(d);}
//控制div逐渐显示
var i = 0;
function change_show(){
var obj = $("tip");
i=i+5; //逐渐显示速度
obj.style.filter = "Alpha(Opacity=" + i + ")"; //透明度逐渐变小
obj.style.opacity = i/100; //兼容FireFox
if(i>=100){
clearInterval(s);
i=0;
}
}
//控制div逐渐消失
var j = 100;
function change_hidden(){
var obj = $("tip");
j=j-5; //逐渐消失速度
obj.style.filter = "Alpha(Opacity=" + j + ")"; //透明度逐渐变大
obj.style.opacity = j/100; //兼容FireFox
if(j<=0){
clearInterval(h);
//obj.style.display="none";
j=100;
}
}
//控制change_show()行为
var s;
function show(){
if(s){clearInterval(s);}
$("tip").style.display="block";
s = setInterval(change_show,1);
}
//控制change_hidden()行为
var h;
function hiddentip(){
$("tip").innerHTML="";
h = setInterval(change_hidden,1);
}
//-->
</script>
</head>
<body>
鼠标滑过这里，渐变出现
<div id="tip" style="background-color:blue;width:48%;height:48%;" onmouseover="show();" onmouseout="hiddentip();">
</div>
</body>
</html>

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Readers who are interested in more JavaScript-related content can check out the special topics on this site: "Summary of JavaScript search algorithm techniques", "Summary of JavaScript animation special effects and techniques", "Summary of JavaScript errors and debugging techniques", "Summary of JavaScript data structures and algorithm techniques", "Summary of JavaScript traversal algorithms and techniques" and "JavaScript Mathematics Summary of operation usage》

I hope this article will be helpful to everyone in JavaScript programming.

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