我正在研究使百分比数增加的项目，同时在百分比数内有需要根据百分比本身填充的背景色。到目前为止，它是有效的，但仅背景动画本身。我的意思是，如果它的百分比是50％，则需要达到50％的一半。如果它是100，则需要使所有100％数字的背景颜色。这是html和css的相对代码。
var i = 0;
var perc = 0;
function buttonClick6() {
perc += 5;
document.getElementById('here').innerHTML = percentage(perc) + "%";
}
function buttonClick5() {
i += 5;
document.getElementById('demo').innerHTML = "€" + i;
}
function percentage(per) {
return (100 / 100) * per;
}
$(document).ready(function() {
var skillBar = $('.inner');
var skillVal = skillBar.attr("data-progress");
$(skillBar).animate({
height: skillVal
}, 2100);
});body {
position: absolute;
width: 1670px;
height: 1030px;
font-family: arial;
background-color: black;
}
.outer {
width: 100%;
height: 386px;
overflow: hidden;
position: relative;
margin-top: 300px;
text-align: center;
}
.inner {
background: url(color3.jpg);
bottom: 0;
height: 0%;
width: 100%;
overflow: hidden;
animation: animateMid 15s linear infinite;
-webkit-background-clip: text;
position: absolute;
}
.inner h2 {
font-size: 500px;
margin-top: -95px;
color: rgba(225, 225, 225, .1);
}
@keyframes animateMid {
0% {
background-position: left 800px top 500px;
}
}<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<body>
<div class="skill">
<div class="outer">
<div class="inner" data-progress="100%">
<h2 id="demo">0</h2>
<div></div>
</div>
</div>
</div>
<div class="perc">
<h3 id="here">0%</h3>
</div>
<button class="btn" onclick="buttonClick5(),buttonClick6()">Donate 5€</button><!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta name="viewport" content="width=device-width, initial-scale=0, maximum-scale=1, user-scalable=no" />
<meta charset="utf-8">
<title>Raised!</title>
<link rel="stylesheet" type="text/css" href="stylesheet.css">
<style>
body {
position: absolute;
width: 1670px;
height: 1030px;
font-family: arial;
background-color: black;
}
.outer {
width: 100%;
height: 386px;
overflow: hidden;
position: relative;
margin-top: 300px;
text-align: center;
}
h3{
color: white;
}
.inner {
background: url(color3.jpg);
bottom: 0;
height: 0%;
width: 100%;
overflow: hidden;
animation: animateMid 15s linear infinite;
-webkit-background-clip: text;
position: absolute;
}
.inner h2 {
font-size: 500px;
margin-top: -95px;
color: #fff;
}
@keyframes animateMid {
0% {
background-position: left 800px top 500px;
}
}
p {
color: transparent;
font-size: 500px;
top: -95px;
left: 0;
z-index: 1;
width: 100%;
height: 130%;
margin: 0;
position: absolute;
font-weight: bold;
background: #2c2c2c;
background-clip: text;
-webkit-background-clip: text;
}
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script>
var i = 0;
var perc = 0;
function buttonClick6() {
perc += 5;
document.getElementById('here').innerHTML = percentage(perc) + "%";
document.getElementById('demo2').style.height = (125 - percentage(perc)) + "%";
}
function buttonClick5() {
i += 5;
document.getElementById('demo').innerHTML = "€" + i;
document.getElementById('demo2').innerHTML = "€" + i
}
function percentage(per) {
return (100 / 100) * per;
}
</script>
<script>
$(document).ready(function() {
var skillBar = $('.inner');
var skillVal = skillBar.attr("data-progress");
$(skillBar).animate({
height: skillVal
}, 2100);
});
</script>
</head>
<body>
<div class="skill">
<div class="outer">
<div class="inner" data-progress="100%" data-value="0">
<p id="demo2">0</p>
<h2 id="demo">0</h2>
<div></div>
</div>
</div>
</div>
<div class="perc">
<h3 id="here">0%</h3>
</div>
<button class="btn" onclick="buttonClick5(),buttonClick6()">Donate 5€</button>
</body>
</html>