JS and CSS realize the pop-up of a DIV box with buffered animation gradient effect when the mouse passes-JS Tutorial-php.cn

JS and CSS realize the pop-up of a DIV box with buffered animation gradient effect when the mouse passes

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Release： 2018-06-25 11:00:55

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This article mainly introduces the JS CSS implementation method of popping up a p box after the mouse passes, with a buffered gradient animation effect, involving the response to mouse events and the related skills of combining time function timing triggering to form an animation gradient effect. Friends in need You can refer to the following example

This article describes the JS CSS effect of popping up a p box when the mouse passes. 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p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p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
<p id="tip" style="background-color:blue;width:48%;height:48%;" onmouseover="show();" onmouseout="hiddentip();">
</p>
</body>
</html>

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