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JavaScript

Posted by Shaun Kelly
Shaun Kelly
35,560 Points

How to create overlapping scroll effect

How do i create an effect where the top half disappears as you scroll down like this: http://lokeshdhakar.com/projects/lightbox2/

1 Answer

Colin Bell
Colin Bell
29,679 Points
Colin Bell
Colin Bell
29,679 Points

You don't need JS for this. Taking a look at the source code, it looks like this can be done with two divs. A backdrop to hold the stuff you want in the header, and a content div to hold everything that will scroll over it.

.backdrop {
    position: fixed;
    z-index: 5;
    width: 100%;
    height: 100%;
    background-color: #F5F5F5;
}

.content {
    position: absolute;
    z-index: 10; /* Important! Must be higher than .backdrop's z-index. */
    width: 100%;
    border-top: 1px solid #E8E8E8;
    background-color: #FFF;
    top: 28rem; /* How much space to give the backdrop section */
}