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Delay animation

Hey guys....

I have a question for you...

I'm trying to have list elements fade in one after each other, I use this code to do animations when elements come into viewport, and it work nicely, but I can't figure out how to delay each next element. simple "animation-delay: 1s" is not working because element will be shown and and then faded in again. I tried adding visibility: none to all "li" classes where I have setup "animation-delay" but that is not working either...

Here is CSS:

        animation-name: slideDown;
        -webkit-animation-name: slideDown;  

        animation-duration: 1s; 
        -webkit-animation-duration: 1s;

        animation-timing-function: ease;    
        -webkit-animation-timing-function: ease;

        visibility: visible !important;

Javascript to call it:

$(window).scroll(function() { $('.animateme-slideDown').each(function(){ var imagePos = $(this).offset().top;
var topOfWindow = $(window).scrollTop(); if (imagePos < topOfWindow+650) { $(this).addClass("slideDown"); } }); });
        <ul class="areas">
            <li class=" animateme-slideDown hideme">
                <img src="images/areas-fitness@2x.png" alt="" class="icon">
                <p>Cardiovascular and muscle health even if youโ€™re not a gym rat.</p>
            <li class=" animateme-slideDown speed1 hideme">
                <img src="images/areas-mindfulness@2x.png" alt="" class="icon">
                <p>A calm and present mind is critical to being happy and productive.</p>
            <li class=" animateme-slideDown speed2 hideme">
                <img src="images/areas-eating@2x.png" alt="" class="icon">
                <h4>Healthy Eating</h4>
                <p>What you eat and drink strongly determines your well-being.</p>
            <li class=" animateme-slideDown speed3 hideme">
                <img src="images/areas-community@2x.png" alt="" class="icon">
                <p>Volunteering in the community ripples back in waves of good karma.</p>