更新第52个小实例

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DESKTOP-BM6RJU5\wyanh 2021-11-24 18:46:23 +08:00
parent 0337cbbe36
commit 461bc8f0e2
4 changed files with 101 additions and 1 deletions

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48. HTML5+CSS3小实例之3D立方体旋转相册
49. HTML5+CSS3小实例之3D分层图像悬停效果
50. HTML5+CSS3小实例之不偷看密码的超萌猫头鹰登录界面
51. HTML5+CSS3小实例之动感的金属质感闪光文字
51. HTML5+CSS3小实例之动感的金属质感闪光文字
52. HTML5+CSS3小实例之高级感满满的滚轮视差响应效果

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css/52.css Normal file
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*{
/* 初始化 */
margin: 0;
padding: 0;
}
body{
/* 200%窗口高度(两屏窗口的高度) */
height: 200vh;
}
.bg{
/* 背景图片 */
background-image: url("../images/mountain.jpg");
/* 对图片进行剪切,保留原始比例 */
background-size: cover;
/* 设置背景图片的定位 */
background-position: 50% 50%;
height: 200vh;
font-size: 650px;
font-weight: 900;
text-align: center;
/* 相对定位 */
position: relative;
/* 以区块内的文字作为裁剪区域向外裁剪,文字的背景即为区块的背景,文字之外的区域都将被裁剪掉 */
-webkit-background-clip: text;
/* 将文字透明镂空 */
-webkit-text-fill-color: transparent;
overflow: hidden;
padding-top: 100px;
}
.bg::before{
content: "";
/* 背景图片继承父元素 */
background-image: inherit;
background-size: cover;
background-position: 50% 50%;
/* 绝对定位 */
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
z-index: -99;
}
h2{
position: absolute;
top: 20px;
width: 100%;
text-align: center;
letter-spacing: 8px;
color: #fff;
}
h1{
position: absolute;
top: 145vh;
left: 50%;
transform: translateX(-50%);
width: 60%;
color: #fff;
letter-spacing: 10px;
padding: 100px 0;
text-align: center;
background-color: rgba(0,0,0,0.5);
}

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html/52.html Normal file
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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no">
<title>高级感满满的滚轮视差相应效果</title>
<link rel="stylesheet" href="../css/52.css">
</head>
<body>
<h2>↓滚轮滚一下呗↓</h2>
<div class="bg">
<span>Hello</span>
</div>
<h1>欢迎来到<br>艾恩小灰灰的前端世界</h1>
<script type="text/javascript">
// 获取背景对象
const bg=document.querySelector(".bg");
// 监听滚轮事件
document.addEventListener("scroll",function(){
// 获取当前滚轮的位置
const scrollY=window.scrollY;
if(scrollY!=0){
// 滚轮位置不等于0时,修改背景的定位加上滚轮的值
bg.style.backgroundPosition="calc(50% + "+scrollY+"px) calc(50% + "+scrollY+"px)";
}else{
// 否则清空背景的定位
bg.style.backgroundPosition="";
}
})
</script>
</body>
</html>

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