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我需要使此元素（導航欄）停止在頁腳。我在編寫jQuery時遇到了太多的麻煩，所以當頂部遇到它時它會移動，但是當它到達頁腳時我無法停止。我嘗試用純JavaScript和不同的jQueries，但只有這個代碼才能工作。謝謝！在頁腳使固定導航欄停止
var scrolljsTop = $('#scrolljs').offset().top;
$(window).scroll(function() {
var currentScroll = $(window).scrollTop();
if (currentScroll >= scrolljsTop) {
$('#scrolljs').css({
position: 'fixed',
top: '0'
});
} else {
$('#scrolljs').css({
position: 'relative'
});
}
});#cssmenu {
padding: 0;
margin: 0;
margin-top: 10px;
border: 0;
line-height: 1;
height: 1560px;
box-shadow: 0 10px 20px 0 rgba(0, 0, 0, 0.2), 0 12px 26px 0 rgba(0, 0, 0, 0.19);
}
#cssmenu ul,
#cssmenu ul li,
#cssmenu ul ul {
list-style: none;
margin: 0;
padding: 0;
}
#cssmenu ul {
position: relative;
z-index: 597;
float: left;
}
#cssmenu ul li {
float: left;
min-height: 1px;
line-height: 1em;
vertical-align: middle;
position: relative;
}
#cssmenu ul li.hover,
#cssmenu ul li:hover {
position: relative;
z-index: 599;
cursor: default;
}
#cssmenu ul ul {
visibility: hidden;
position: absolute;
top: 100%;
left: 0px;
z-index: 598;
width: 100%;
}
#cssmenu ul ul li {
float: none;
}
#cssmenu ul ul ul {
top: -2px;
right: 0;
}
#cssmenu ul li:hover > ul {
visibility: visible;
}
#cssmenu ul ul {
top: 1px;
left: 99%;
}
#cssmenu ul li {
float: none;
}
#cssmenu ul ul {
margin-top: 1px;
}
#cssmenu ul ul li {
font-weight: normal;
}
/* Custom CSS Styles */
#cssmenu {
width: 200px;
background: #333;
font-family: 'Oxygen Mono', Tahoma, Arial, sans-serif;
font-size: 12px;
zoom: 1;
border-right: 3px solid #1b9bff;
color: #fff;
}
#cssmenu:before {
content: '';
display: block;
}
#cssmenu:after {
content: '';
display: table;
clear: both;
}
#cssmenu a {
display: block;
padding: 15px 20px;
color: #fff;
text-decoration: none;
text-transform: uppercase;
}
#cssmenu > ul {
width: 200px;
}
#cssmenu ul ul {
width: 200px;
}
#cssmenu > ul > li > a {
border-right: 3px solid #1b9bff;
color: #fff;
}
#cssmenu > ul > li > a:hover {
color: #fff;
}
#cssmenu > ul > li.active a {
background: #1b9bff;
}
#cssmenu > ul > li a:hover,
#cssmenu > ul > li:hover a {
background: #006fc5;
}
#cssmenu li {
position: relative;
}
#cssmenu ul li.has-sub > a:after {
content: '+';
position: absolute;
top: 50%;
right: 15px;
margin-top: -6px;
}
#cssmenu ul ul li.first {
-webkit-border-radius: 0 3px 0 0;
-moz-border-radius: 0 3px 0 0;
border-radius: 0 3px 0 0;
}
#cssmenu ul ul li.last {
-webkit-border-radius: 0 0 3px 0;
-moz-border-radius: 0 0 3px 0;
border-radius: 0 0 3px 0;
border-bottom: 0;
}
#cssmenu ul ul {
-webkit-border-radius: 0 3px 3px 0;
-moz-border-radius: 0 3px 3px 0;
border-radius: 0 3px 3px 0;
}
#cssmenu ul ul {
border: 1px solid #0082e7;
}
#cssmenu ul ul a {
font-size: 12px;
color: #fff;
}
#cssmenu ul ul a:hover {
color: #fff;
}
#cssmenu ul ul li {
border-bottom: 1px solid #0082e7;
}
#cssmenu ul ul li:hover > a {
background: #4eb1ff;
color: #fff;
}
#cssmenu.align-right > ul > li > a {
border-left: 4px solid #1b9bff;
border-right: none;
}
#cssmenu.align-right {
float: right;
}
#cssmenu.align-right li {
text-align: right;
}
#cssmenu.align-right ul li.has-sub > a:before {
content: '+';
position: absolute;
top: 50%;
left: 15px;
margin-top: -6px;
}
#cssmenu.align-right ul li.has-sub > a:after {
content: none;
}
#cssmenu.align-right ul ul {
visibility: hidden;
position: absolute;
top: 0;
left: -100%;
z-index: 598;
width: 100%;
}
#cssmenu.align-right ul ul li.first {
-webkit-border-radius: 3px 0 0 0;
-moz-border-radius: 3px 0 0 0;
border-radius: 3px 0 0 0;
}
#cssmenu.align-right ul ul li.last {
-webkit-border-radius: 0 0 0 3px;
-moz-border-radius: 0 0 0 3px;
border-radius: 0 0 0 3px;
}
#cssmenu.align-right ul ul {
-webkit-border-radius: 3px 0 0 3px;
-moz-border-radius: 3px 0 0 3px;
border-radius: 3px 0 0 3px;
}
#footer {
height:500px;
background-color:#2f3a5f
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div>
<div id="cssmenu">
<ul id="scrolljs">
<li class="active" id="social-float">
<a href="#" target="_blank">Home</a>
</li>
<li><a href="#">Menus</a>
</li>
<li><a href="#">Settings</a>
</li>
<li><a href="#">Contact</a>
</li>
</ul>
</div>
</div>
<div id="footer"></div>
爲什麼會在高度1560px？ –
我需要長期在我的網頁的cssmenu –