我有一个横幅,我想在滚动时模糊,我找到了一个代码。我编辑了它,它在Codepen中看起来很漂亮,但它在JSFiddle或我的HTML页面上不起作用。我将在下面发布每个链接。 我可能只是做错了什么,但真的很感激帮助。
Codepen(工作):http://codepen.io/theinvadingdingo/pen/MwmwrM JSFiddle(不工作):https://jsfiddle.net/mn7p1451/
如果您需要,以下是我用于HTML,CSS和Javascript的代码:
HTML
<header>
<div class="content">
<hgroup>
<h1>Wolf Valley</h1>
</hgroup>
</div>
<div class="overlay"></div>
</header>
<div class="site"></div>
CSS
@import"bourbon";
@import url(http://fonts.googleapis.com/css?family=Lato);
html, body {
padding: 0;
margin: 0;
height: 100%;
}
html {
font: 1em/1.5"Lato", sans-serif;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
text-rendering: optimizelegibility;
}
body {
font-size: 1.3em;
}
header {
height: 100%;
position: relative;
overflow: hidden;
background: url(http://s6.postimg.org/j8n8hawrl/Flower.png) center no-repeat;
/* Image Credit: Unsplash.me */
background-size: cover;
.content {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
z-index: 1;
}
h1, h2 {
margin: 0;
}
h2 {
text-transform: uppercase;
margin-top: -.5em;
}
hgroup {
@include transform(translate(-50%, -50%));
display: inline-block;
text-align: center;
position: absolute;
top: 50%;
left: 50%;
color: #fff;
border: 5px solid #fff;
padding: .5em 3em;
background-color: rgba(0, 0, 0, .2);
z-index: 2;
}
.overlay {
position: absolute;
top: 0;
right: 0;
left: 0;
bottom: 0;
background: url(http://s6.postimg.org/6sqink3fl/Flower_Blur.png) center no-repeat;
background-size: cover;
z-index: 0;
opacity: 0;
}
}
.site {
padding: 20em 0;
text-align: center;
background-color: #efefef;
font-size: .8em;
color: #444;
a {
color: #666;
text-decoration: none;
&:hover {
color: #222;
}
}
}
的JavaScript
/**
* Cache
*/
var $content = $('header .content'),
$blur = $('header .overlay'),
wHeight = $(window).height();
$(window).on('resize', function () {
wHeight = $(window).height();
});
/**
* requestAnimationFrame Shim
*/
window.requestAnimFrame = (function () {
return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || function (callback) {
window.setTimeout(callback, 1000 / 60);
};
})();
/**
* Scroller
*/
function Scroller() {
this.latestKnownScrollY = 0;
this.ticking = false;
}
Scroller.prototype = {
/**
* Initialize
*/
init: function () {
window.addEventListener('scroll', this.onScroll.bind(this), false);
},
/**
* Capture Scroll
*/
onScroll: function () {
this.latestKnownScrollY = window.scrollY;
this.requestTick();
},
/**
* Request a Tick
*/
requestTick: function () {
if (!this.ticking) {
window.requestAnimFrame(this.update.bind(this));
}
this.ticking = true;
},
/**
* Update.
*/
update: function () {
var currentScrollY = this.latestKnownScrollY;
this.ticking = false;
/**
* Do The Dirty Work Here
*/
var slowScroll = currentScrollY / 4,
blurScroll = currentScrollY * 2;
$content.css({
'transform': 'translateY(-' + slowScroll + 'px)',
'-moz-transform': 'translateY(-' + slowScroll + 'px)',
'-webkit-transform': 'translateY(-' + slowScroll + 'px)'
});
$blur.css({
'opacity': blurScroll / wHeight
});
}
};
/**
* Attach!
*/
var scroller = new Scroller();
scroller.init();
答案 0 :(得分:3)
查看您的JavaScript控制台。认真。如果您的JS不起作用:请阅读浏览器为您提供的错误。
当它工作时,你加载了jQuery:
当它不起作用时,你没有:
如果您使用库,请确保加载该库。
答案 1 :(得分:1)
您的CSS无效,只要我知道您无法执行此操作
header{
//css here
.a{
//more css here
}
}
你必须这样做
header{
//css
}
header.a{
//css
}
答案 2 :(得分:1)
编写css后你没有关闭标题部分...见下面的代码。请检查
$(function() {
$('#myButton').on('click', function() {
var text = $('input[name=somename]').val();
var chkd = $('input:checkbox:checked');
var vals = chkd.map(function() {
return this.value;
})
.get().join(', ');
alert("Name: " + text + "\n" + "Checkbox: " + vals );
});
});