I want create a navbar that can change the background-color
when scroll on spesific scrollTop
. It's working perfectly, but I want add a transition between change both color. It's mean when I scroll more and more to bottom the navbar background-color getting blue. Here's my fiddle https://jsfiddle.net/7efc61qs/ .
Thanks in advance
var div = $('.red'); var limit = 500; $(window).scroll(function(){ var st = $(this).scrollTop(); div.css({ 'opacity' : (1 - st/500) }); })
.red { background:red; position:fixed; width:100%; height:20px; } .blue { position:fixed; background:blue; height:20px; width:100%; } .content { height:20px; position:fixed; width:100%; }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script> <div class="blue"> </div> <div class="red"> </div> <div class="content"> abc </div> <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>
when scrolltop reaches 500px then opacity of div.red is 1 - 500/500 = 0
You might want to check out Scrollie
Funsella made a great example over at CodePen for you to play with: https://codepen.io/Funsella/pen/yLfAG
$( window ).ready(function() {
var wHeight = $(window).height();
$('.slide')
.height(wHeight)
.scrollie({
scrollOffset : -50,
scrollingInView : function(elem) {
var bgColor = elem.data('background');
$('body').css('background-color', bgColor);
}
});
});
Link to Scrollie on GitHub
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