一旦用户开始向下滚动页面,我正在尝试创建一个隐藏但固定在顶部的菜单。到目前为止,我已经设法创建了一个菜单,该菜单在滚动时会粘在顶部,但我一直坚持如何最初隐藏这个菜单。
这是我到目前为止使用的代码:(我正在使用 wordpress-headway)
查询:
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript">
jQuery(document).ready(function($) {
//STICKY NAV
var isMobile = {
Android: function() {
return navigator.userAgent.match(/Android/i) ? true : false;
},
BlackBerry: function() {
return navigator.userAgent.match(/BlackBerry/i) ? true : false;
},
iOS: function() {
return navigator.userAgent.match(/iPhone|iPad|iPod/i) ? true : false;
},
Windows: function() {
return navigator.userAgent.match(/IEMobile/i) ? true : false;
},
any: function() {
return (isMobile.Android() || isMobile.BlackBerry() || isMobile.iOS() || isMobile.Windows());
}
};
//Calculate the height of <header>
//Use outerHeight() instead of height() if have padding
var aboveHeight = $('.top-row').outerHeight();
//when scroll
$(window).scroll(function(){
//if scrolled down more than the header’s height but this isn't mobile
if ($(window).scrollTop() > aboveHeight && !isMobile.any()){
// if yes, add “fixed” class to the <nav>
// add padding top to the #content
// (value is same as the height of the nav)
$('.block-type-navigation').addClass('fixed').css('top','0').next()
.css('padding-top','42px');
} else {
// when scroll up or less than aboveHeight,
// remove the “fixed” class, and the padding-top
$('.block-type-navigation').removeClass('fixed').next()
.css('padding-top','0');
}
});
});
</script>
CSS:
.fixed {
position:fixed !important;
left: 0;
text-align: center;
}
.fixed .block-content {
display: inline-block;
text-align: left;
width: 940px; /* This should be the width of your grid!!! */
float:none;
}
.fixed {
position:fixed !important;
left: 0;
text-align: center;
display: block !important;
}
这让我发疯,所以我很感激任何帮助!
谢谢!