충돌을 피하기 위해 객체를 쉽게 참조 할 수 있도록 CSS 및 HTML 마크 업을 설정하십시오. 해당 참조를 비교할 조건문을 만듭니다.
Firstly, the working jsFiddle.
html로 ->
<div class="content">
<div class="main">
Main Content
</div>
<div class="sidebar">
Sidebar
</div>
<div class="footer">
Footer
</div>
</div>
CSS는 ->
#content{
position:relative; /* required */
height:2000px;
}
.main{
margin-left:100px;
border:1px solid rgb(120,120,120);
height:1500px;
}
.sidebar{
position:absolute; /* required */
top:25px; /* required -- does NOT need to be this value, however. */
left:5px; /* required -- does NOT need to be this value, however.*/
border:1px solid rgb(8,8,8);
background:rgba(70,70,70,.9);
color:#ecebeb;
width:93px;
}
.footer{
border-top:1px solid #ff0000;
height:498px;
}
JQuery와 ->
$(window).scroll(function(){
var dist = $(window).scrollTop();
var sTop = $('.sidebar').position().top;
var mHeight = $('.main').height();
var userDist = 100;
if((sTop > (mHeight - userDist)) && (dist > (mHeight - userDist))){
//the sidebar is pinned now. it won't scroll further.
}else if(dist < (mHeight - userDist)){
$('.sidebar').animate({
top: dist + $('.sidebar').height()
}, 0);
}
});