在向下滚动时替换div中的图像 [英] replace image in div on scroll down
问题描述
想要在#logo中替换图像resized.png,向下滚动并向上滚动应该恢复正常。
wanna replace the image in #logo with the image resized.png upon scroll down and on scroll up should return to normal.
尝试使用代码
<script type="text/javascript">
$(function(){
$(window).scroll(function(){
if($(this).scrollTop() > 100) $('#topbar, .cart-label').fadeOut('slow');
$('#logo').css({'background-image':'url(http://elementsmart.com/wp-content/uploads/2013/06/resized.png)','background-repeat':'no-repeat'})
if($(this).scrollTop() < 100) $('#logo, #topbar, .cart-label').fadeIn('fast');
})
});
resized.png确实来了顶部但想要完全替换它并在滚动到顶部时恢复。
该网站的链接是: http://elementsmart.com / product / deep-azure-rajasthani-necklace-set /
可以sum1建议?
resized.png does come on top but wanna replace it altogether and be restored upon scroll to top. the link to the site is :http://elementsmart.com/product/deep-azure-rajasthani-necklace-set/ can sum1 suggest ?
推荐答案
更新答案
点击此处,查看工作演示 http: //jsfiddle.net/yeyene/49HA3/1/
您试图将背景图片错误地提供给 a
标签,实际上你需要在 a
标签内更改 img
标签的src。
You are trying to give background-image wrongly to a
tag, actually you need to change the src of img
tag within a
tag.
这就是为什么你有2张图片。一个用于一个
标签background-image,另一个是 img
在 a $ c $中c> tag。
That is why, you got 2 images. One for a
tag background-image, another is img
within a
tag.
$(function(){
$(window).scroll(function(){
if($(this).scrollTop() > 100) {
$('#topbar, .cart-label').fadeOut('slow');
$('#logo-img img')
.css({'width':'184px','height':'33px'})
.attr('src','http://elementsmart.com/wp-content/uploads/2013/06/resized.png');
}
if($(this).scrollTop() < 100) {
$('#logo, #topbar, .cart-label').fadeIn('fast');
$('#logo-img img')
.css({'width':'184px','height':'60px'})
.attr('src','http://elementsmart.com/wp-content/uploads/2013/06/logo2.png');
}
});
});
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