How can I trigger orl event












0















How can I trigger or execute a class animation with scroll eventHow can I triggerHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll event
to
{
background-position: -10234px;
}
}



@keyframes close

{

    from

    {

        background-position: -10234px;



    }

    to

    {

        background-position: 0;

    }

}


JS:



  $(function(){

  $(window).scroll(function(){



    var st = $(this).scrollTop();



    if(st >= 599){

      var element = document.getElementById("myDIV");

          element.classList.remove("close");

          element.classList.add("open");

          element.classList.remove("static");

      console.log('OPEN!');

    }

    else if(st <= 600 && st < 600){

      var element = document.getElementById("myDIV");

      element.classList.remove("open");

      element.classList.add("close");

      element.classList.remove("static");

  console.log('CLOSE!');



    }

    else {



    }

  });

  });





jquery scroll







share|improve this question

























  • You want to change the behavior depending on whether a user is scrolling up or down? So say if I scroll towards the bottom and reach 599px, then element.classList.add("animateOpenScroll"); is invoked (like you're showing). But if the scroll is below 599px and I scroll towards the top, you want element.classList.add("animateColseScroll"); to get invoiked? Is that the question?

    – seebiscuit
    Dec 31 '18 at 2:46











  • Hi seebiscuit!, yes, but in both ways, just update the post so you can see.

    – Tzu
    Jan 2 at 2:10
















0















How can I trigger or execute a class animation with scroll eventHow can I triggerHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll event
to
{
background-position: -10234px;
}
}



@keyframes close

{

    from

    {

        background-position: -10234px;



    }

    to

    {

        background-position: 0;

    }

}


JS:



  $(function(){

  $(window).scroll(function(){



    var st = $(this).scrollTop();



    if(st >= 599){

      var element = document.getElementById("myDIV");

          element.classList.remove("close");

          element.classList.add("open");

          element.classList.remove("static");

      console.log('OPEN!');

    }

    else if(st <= 600 && st < 600){

      var element = document.getElementById("myDIV");

      element.classList.remove("open");

      element.classList.add("close");

      element.classList.remove("static");

  console.log('CLOSE!');



    }

    else {



    }

  });

  });





jquery scroll







share|improve this question

























  • You want to change the behavior depending on whether a user is scrolling up or down? So say if I scroll towards the bottom and reach 599px, then element.classList.add("animateOpenScroll"); is invoked (like you're showing). But if the scroll is below 599px and I scroll towards the top, you want element.classList.add("animateColseScroll"); to get invoiked? Is that the question?

    – seebiscuit
    Dec 31 '18 at 2:46











  • Hi seebiscuit!, yes, but in both ways, just update the post so you can see.

    – Tzu
    Jan 2 at 2:10














0












0








0








How can I trigger or execute a class animation with scroll eventHow can I triggerHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll event
to
{
background-position: -10234px;
}
}



@keyframes close

{

    from

    {

        background-position: -10234px;



    }

    to

    {

        background-position: 0;

    }

}


JS:



  $(function(){

  $(window).scroll(function(){



    var st = $(this).scrollTop();



    if(st >= 599){

      var element = document.getElementById("myDIV");

          element.classList.remove("close");

          element.classList.add("open");

          element.classList.remove("static");

      console.log('OPEN!');

    }

    else if(st <= 600 && st < 600){

      var element = document.getElementById("myDIV");

      element.classList.remove("open");

      element.classList.add("close");

      element.classList.remove("static");

  console.log('CLOSE!');



    }

    else {



    }

  });

  });





jquery scroll







share|improve this question
















How can I trigger or execute a class animation with scroll eventHow can I triggerHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll eventHow can I trigger or execute a class animation with scroll event
to
{
background-position: -10234px;
}
}



@keyframes close

{

    from

    {

        background-position: -10234px;



    }

    to

    {

        background-position: 0;

    }

}


JS:



  $(function(){

  $(window).scroll(function(){



    var st = $(this).scrollTop();



    if(st >= 599){

      var element = document.getElementById("myDIV");

          element.classList.remove("close");

          element.classList.add("open");

          element.classList.remove("static");

      console.log('OPEN!');

    }

    else if(st <= 600 && st < 600){

      var element = document.getElementById("myDIV");

      element.classList.remove("open");

      element.classList.add("close");

      element.classList.remove("static");

  console.log('CLOSE!');



    }

    else {



    }

  });

  });





jquery scroll




jquery scroll






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Mar 14 at 15:00







Tzu

















asked Dec 31 '18 at 2:38









TzuTzu

116




116













  • You want to change the behavior depending on whether a user is scrolling up or down? So say if I scroll towards the bottom and reach 599px, then element.classList.add("animateOpenScroll"); is invoked (like you're showing). But if the scroll is below 599px and I scroll towards the top, you want element.classList.add("animateColseScroll"); to get invoiked? Is that the question?

    – seebiscuit
    Dec 31 '18 at 2:46











  • Hi seebiscuit!, yes, but in both ways, just update the post so you can see.

    – Tzu
    Jan 2 at 2:10



















  • You want to change the behavior depending on whether a user is scrolling up or down? So say if I scroll towards the bottom and reach 599px, then element.classList.add("animateOpenScroll"); is invoked (like you're showing). But if the scroll is below 599px and I scroll towards the top, you want element.classList.add("animateColseScroll"); to get invoiked? Is that the question?

    – seebiscuit
    Dec 31 '18 at 2:46











  • Hi seebiscuit!, yes, but in both ways, just update the post so you can see.

    – Tzu
    Jan 2 at 2:10

















You want to change the behavior depending on whether a user is scrolling up or down? So say if I scroll towards the bottom and reach 599px, then element.classList.add("animateOpenScroll"); is invoked (like you're showing). But if the scroll is below 599px and I scroll towards the top, you want element.classList.add("animateColseScroll"); to get invoiked? Is that the question?

– seebiscuit
Dec 31 '18 at 2:46





You want to change the behavior depending on whether a user is scrolling up or down? So say if I scroll towards the bottom and reach 599px, then element.classList.add("animateOpenScroll"); is invoked (like you're showing). But if the scroll is below 599px and I scroll towards the top, you want element.classList.add("animateColseScroll"); to get invoiked? Is that the question?

– seebiscuit
Dec 31 '18 at 2:46













Hi seebiscuit!, yes, but in both ways, just update the post so you can see.

– Tzu
Jan 2 at 2:10





Hi seebiscuit!, yes, but in both ways, just update the post so you can see.

– Tzu
Jan 2 at 2:10












1 Answer
1






active

oldest

votes


















1














Here's a very lazy answer on the last day of 2018...Happy New Year ;)



$(function(){

  $(window).scroll(function(){



    var st = $(this).scrollTop();



    if(st >= 599 && st < 799){

      var element = document.getElementById("myDIV");

      element.classList.add("animateOpenScroll");

    }

    else if(st >= 799){

       //do whatever you need to do if scroll top reaches (or surpasses) 799

    }

    else {

       //you'll need this. Fall back to the initial state...when scroll top is less than 599

    }

  });

  });


More Details



The main problem is that your div has 2 states, not 3. It is either open or close and then your if...else block doesn't reflect this...in fact, it's a bit over the place...for example this...



else if(st <= 600 && st < 600){}


doesn't make much sense, not to mention the empty else block which is essentially the same as the else if block in this context. You need to tidy up your code first to make it easier to understand...



Tidying Up



The .static, .open and .close css classes are basically the same, the only difference is that the last 2 add an animation. You can easily remove those declarations. Here's your new .open, .close classess...



.open{

    animation: open 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



.close{

    animation: close 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}


now in your jQuery code you don't need to add/remove the .static css class. Also, you need to get keep track of the state of your div to know when to play the .close animation and when not to.
See all the changes below...






var open = false;



$(function(){

  var element = document.getElementById("myDIV");

  var scrollMarker = 599;

  

  $(window).scroll(function(){



    var st = $(this).scrollTop();



    if(st >= scrollMarker){

      open = true;

      element.classList.remove("close");

      element.classList.add("open");

    }

    

    //plays the close animation only if the "state" of the div is open

    else if(open) {

    	open = false;

      element.classList.remove("open");

      element.classList.add("close");



    }

    

  });

  

});

body {

    background-color: black;

  margin: 0;

  padding: 0;

    height: 2500px;

}



.static{

    position: absolute;

  top: 100%;

  left: 50%;

  transform: translate(-50%, -50%);

  width: calc(10965px / 15);

  height: 499px;

  background: url(https://www.nvidia.com/content/dam/en-zz/Solutions/titan/titan-rtx/titan-rtx-exploded-view-v022-seq1-15f-ld.jpg);

}



.open{

    animation: open 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



.close{

    animation: close 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



@keyframes open

{

    from

    {

        background-position: 0;

    }

    to

    {

        background-position: -10234px;

    }

}





@keyframes close

{

    from

    {

        background-position: -10234px;



    }

    to

    {

        background-position: 0;

    }

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<div id="myDIV" class="static"></div>





You might have to click on "Full Page" if you want to see the animation or...change the value of scrollMarker






share|improve this answer


























  • Hi Leo!, Happy new year!, thank you so much for the answer, I'm using your suggestion, but now I have a new issue, I just update the post so you can see it better.

    – Tzu
    Jan 2 at 2:07













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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









1














Here's a very lazy answer on the last day of 2018...Happy New Year ;)



$(function(){

  $(window).scroll(function(){



    var st = $(this).scrollTop();



    if(st >= 599 && st < 799){

      var element = document.getElementById("myDIV");

      element.classList.add("animateOpenScroll");

    }

    else if(st >= 799){

       //do whatever you need to do if scroll top reaches (or surpasses) 799

    }

    else {

       //you'll need this. Fall back to the initial state...when scroll top is less than 599

    }

  });

  });


More Details



The main problem is that your div has 2 states, not 3. It is either open or close and then your if...else block doesn't reflect this...in fact, it's a bit over the place...for example this...



else if(st <= 600 && st < 600){}


doesn't make much sense, not to mention the empty else block which is essentially the same as the else if block in this context. You need to tidy up your code first to make it easier to understand...



Tidying Up



The .static, .open and .close css classes are basically the same, the only difference is that the last 2 add an animation. You can easily remove those declarations. Here's your new .open, .close classess...



.open{

    animation: open 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



.close{

    animation: close 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}


now in your jQuery code you don't need to add/remove the .static css class. Also, you need to get keep track of the state of your div to know when to play the .close animation and when not to.
See all the changes below...






var open = false;



$(function(){

  var element = document.getElementById("myDIV");

  var scrollMarker = 599;

  

  $(window).scroll(function(){



    var st = $(this).scrollTop();



    if(st >= scrollMarker){

      open = true;

      element.classList.remove("close");

      element.classList.add("open");

    }

    

    //plays the close animation only if the "state" of the div is open

    else if(open) {

    	open = false;

      element.classList.remove("open");

      element.classList.add("close");



    }

    

  });

  

});

body {

    background-color: black;

  margin: 0;

  padding: 0;

    height: 2500px;

}



.static{

    position: absolute;

  top: 100%;

  left: 50%;

  transform: translate(-50%, -50%);

  width: calc(10965px / 15);

  height: 499px;

  background: url(https://www.nvidia.com/content/dam/en-zz/Solutions/titan/titan-rtx/titan-rtx-exploded-view-v022-seq1-15f-ld.jpg);

}



.open{

    animation: open 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



.close{

    animation: close 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



@keyframes open

{

    from

    {

        background-position: 0;

    }

    to

    {

        background-position: -10234px;

    }

}





@keyframes close

{

    from

    {

        background-position: -10234px;



    }

    to

    {

        background-position: 0;

    }

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<div id="myDIV" class="static"></div>





You might have to click on "Full Page" if you want to see the animation or...change the value of scrollMarker






share|improve this answer


























  • Hi Leo!, Happy new year!, thank you so much for the answer, I'm using your suggestion, but now I have a new issue, I just update the post so you can see it better.

    – Tzu
    Jan 2 at 2:07


















1














Here's a very lazy answer on the last day of 2018...Happy New Year ;)



$(function(){

  $(window).scroll(function(){



    var st = $(this).scrollTop();



    if(st >= 599 && st < 799){

      var element = document.getElementById("myDIV");

      element.classList.add("animateOpenScroll");

    }

    else if(st >= 799){

       //do whatever you need to do if scroll top reaches (or surpasses) 799

    }

    else {

       //you'll need this. Fall back to the initial state...when scroll top is less than 599

    }

  });

  });


More Details



The main problem is that your div has 2 states, not 3. It is either open or close and then your if...else block doesn't reflect this...in fact, it's a bit over the place...for example this...



else if(st <= 600 && st < 600){}


doesn't make much sense, not to mention the empty else block which is essentially the same as the else if block in this context. You need to tidy up your code first to make it easier to understand...



Tidying Up



The .static, .open and .close css classes are basically the same, the only difference is that the last 2 add an animation. You can easily remove those declarations. Here's your new .open, .close classess...



.open{

    animation: open 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



.close{

    animation: close 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}


now in your jQuery code you don't need to add/remove the .static css class. Also, you need to get keep track of the state of your div to know when to play the .close animation and when not to.
See all the changes below...






var open = false;



$(function(){

  var element = document.getElementById("myDIV");

  var scrollMarker = 599;

  

  $(window).scroll(function(){



    var st = $(this).scrollTop();



    if(st >= scrollMarker){

      open = true;

      element.classList.remove("close");

      element.classList.add("open");

    }

    

    //plays the close animation only if the "state" of the div is open

    else if(open) {

    	open = false;

      element.classList.remove("open");

      element.classList.add("close");



    }

    

  });

  

});

body {

    background-color: black;

  margin: 0;

  padding: 0;

    height: 2500px;

}



.static{

    position: absolute;

  top: 100%;

  left: 50%;

  transform: translate(-50%, -50%);

  width: calc(10965px / 15);

  height: 499px;

  background: url(https://www.nvidia.com/content/dam/en-zz/Solutions/titan/titan-rtx/titan-rtx-exploded-view-v022-seq1-15f-ld.jpg);

}



.open{

    animation: open 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



.close{

    animation: close 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



@keyframes open

{

    from

    {

        background-position: 0;

    }

    to

    {

        background-position: -10234px;

    }

}





@keyframes close

{

    from

    {

        background-position: -10234px;



    }

    to

    {

        background-position: 0;

    }

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<div id="myDIV" class="static"></div>





You might have to click on "Full Page" if you want to see the animation or...change the value of scrollMarker






share|improve this answer


























  • Hi Leo!, Happy new year!, thank you so much for the answer, I'm using your suggestion, but now I have a new issue, I just update the post so you can see it better.

    – Tzu
    Jan 2 at 2:07
















1












1








1







Here's a very lazy answer on the last day of 2018...Happy New Year ;)



$(function(){

  $(window).scroll(function(){



    var st = $(this).scrollTop();



    if(st >= 599 && st < 799){

      var element = document.getElementById("myDIV");

      element.classList.add("animateOpenScroll");

    }

    else if(st >= 799){

       //do whatever you need to do if scroll top reaches (or surpasses) 799

    }

    else {

       //you'll need this. Fall back to the initial state...when scroll top is less than 599

    }

  });

  });


More Details



The main problem is that your div has 2 states, not 3. It is either open or close and then your if...else block doesn't reflect this...in fact, it's a bit over the place...for example this...



else if(st <= 600 && st < 600){}


doesn't make much sense, not to mention the empty else block which is essentially the same as the else if block in this context. You need to tidy up your code first to make it easier to understand...



Tidying Up



The .static, .open and .close css classes are basically the same, the only difference is that the last 2 add an animation. You can easily remove those declarations. Here's your new .open, .close classess...



.open{

    animation: open 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



.close{

    animation: close 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}


now in your jQuery code you don't need to add/remove the .static css class. Also, you need to get keep track of the state of your div to know when to play the .close animation and when not to.
See all the changes below...






var open = false;



$(function(){

  var element = document.getElementById("myDIV");

  var scrollMarker = 599;

  

  $(window).scroll(function(){



    var st = $(this).scrollTop();



    if(st >= scrollMarker){

      open = true;

      element.classList.remove("close");

      element.classList.add("open");

    }

    

    //plays the close animation only if the "state" of the div is open

    else if(open) {

    	open = false;

      element.classList.remove("open");

      element.classList.add("close");



    }

    

  });

  

});

body {

    background-color: black;

  margin: 0;

  padding: 0;

    height: 2500px;

}



.static{

    position: absolute;

  top: 100%;

  left: 50%;

  transform: translate(-50%, -50%);

  width: calc(10965px / 15);

  height: 499px;

  background: url(https://www.nvidia.com/content/dam/en-zz/Solutions/titan/titan-rtx/titan-rtx-exploded-view-v022-seq1-15f-ld.jpg);

}



.open{

    animation: open 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



.close{

    animation: close 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



@keyframes open

{

    from

    {

        background-position: 0;

    }

    to

    {

        background-position: -10234px;

    }

}





@keyframes close

{

    from

    {

        background-position: -10234px;



    }

    to

    {

        background-position: 0;

    }

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<div id="myDIV" class="static"></div>





You might have to click on "Full Page" if you want to see the animation or...change the value of scrollMarker






share|improve this answer















Here's a very lazy answer on the last day of 2018...Happy New Year ;)



$(function(){

  $(window).scroll(function(){



    var st = $(this).scrollTop();



    if(st >= 599 && st < 799){

      var element = document.getElementById("myDIV");

      element.classList.add("animateOpenScroll");

    }

    else if(st >= 799){

       //do whatever you need to do if scroll top reaches (or surpasses) 799

    }

    else {

       //you'll need this. Fall back to the initial state...when scroll top is less than 599

    }

  });

  });


More Details



The main problem is that your div has 2 states, not 3. It is either open or close and then your if...else block doesn't reflect this...in fact, it's a bit over the place...for example this...



else if(st <= 600 && st < 600){}


doesn't make much sense, not to mention the empty else block which is essentially the same as the else if block in this context. You need to tidy up your code first to make it easier to understand...



Tidying Up



The .static, .open and .close css classes are basically the same, the only difference is that the last 2 add an animation. You can easily remove those declarations. Here's your new .open, .close classess...



.open{

    animation: open 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



.close{

    animation: close 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}


now in your jQuery code you don't need to add/remove the .static css class. Also, you need to get keep track of the state of your div to know when to play the .close animation and when not to.
See all the changes below...






var open = false;



$(function(){

  var element = document.getElementById("myDIV");

  var scrollMarker = 599;

  

  $(window).scroll(function(){



    var st = $(this).scrollTop();



    if(st >= scrollMarker){

      open = true;

      element.classList.remove("close");

      element.classList.add("open");

    }

    

    //plays the close animation only if the "state" of the div is open

    else if(open) {

    	open = false;

      element.classList.remove("open");

      element.classList.add("close");



    }

    

  });

  

});

body {

    background-color: black;

  margin: 0;

  padding: 0;

    height: 2500px;

}



.static{

    position: absolute;

  top: 100%;

  left: 50%;

  transform: translate(-50%, -50%);

  width: calc(10965px / 15);

  height: 499px;

  background: url(https://www.nvidia.com/content/dam/en-zz/Solutions/titan/titan-rtx/titan-rtx-exploded-view-v022-seq1-15f-ld.jpg);

}



.open{

    animation: open 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



.close{

    animation: close 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



@keyframes open

{

    from

    {

        background-position: 0;

    }

    to

    {

        background-position: -10234px;

    }

}





@keyframes close

{

    from

    {

        background-position: -10234px;



    }

    to

    {

        background-position: 0;

    }

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<div id="myDIV" class="static"></div>





You might have to click on "Full Page" if you want to see the animation or...change the value of scrollMarker






var open = false;



$(function(){

  var element = document.getElementById("myDIV");

  var scrollMarker = 599;

  

  $(window).scroll(function(){



    var st = $(this).scrollTop();



    if(st >= scrollMarker){

      open = true;

      element.classList.remove("close");

      element.classList.add("open");

    }

    

    //plays the close animation only if the "state" of the div is open

    else if(open) {

    	open = false;

      element.classList.remove("open");

      element.classList.add("close");



    }

    

  });

  

});

body {

    background-color: black;

  margin: 0;

  padding: 0;

    height: 2500px;

}



.static{

    position: absolute;

  top: 100%;

  left: 50%;

  transform: translate(-50%, -50%);

  width: calc(10965px / 15);

  height: 499px;

  background: url(https://www.nvidia.com/content/dam/en-zz/Solutions/titan/titan-rtx/titan-rtx-exploded-view-v022-seq1-15f-ld.jpg);

}



.open{

    animation: open 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



.close{

    animation: close 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



@keyframes open

{

    from

    {

        background-position: 0;

    }

    to

    {

        background-position: -10234px;

    }

}





@keyframes close

{

    from

    {

        background-position: -10234px;



    }

    to

    {

        background-position: 0;

    }

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<div id="myDIV" class="static"></div>





var open = false;



$(function(){

  var element = document.getElementById("myDIV");

  var scrollMarker = 599;

  

  $(window).scroll(function(){



    var st = $(this).scrollTop();



    if(st >= scrollMarker){

      open = true;

      element.classList.remove("close");

      element.classList.add("open");

    }

    

    //plays the close animation only if the "state" of the div is open

    else if(open) {

    	open = false;

      element.classList.remove("open");

      element.classList.add("close");



    }

    

  });

  

});

body {

    background-color: black;

  margin: 0;

  padding: 0;

    height: 2500px;

}



.static{

    position: absolute;

  top: 100%;

  left: 50%;

  transform: translate(-50%, -50%);

  width: calc(10965px / 15);

  height: 499px;

  background: url(https://www.nvidia.com/content/dam/en-zz/Solutions/titan/titan-rtx/titan-rtx-exploded-view-v022-seq1-15f-ld.jpg);

}



.open{

    animation: open 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



.close{

    animation: close 0.5s steps(14);

    animation-fill-mode: forwards;

    animation-play-state: running;

}



@keyframes open

{

    from

    {

        background-position: 0;

    }

    to

    {

        background-position: -10234px;

    }

}





@keyframes close

{

    from

    {

        background-position: -10234px;



    }

    to

    {

        background-position: 0;

    }

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<div id="myDIV" class="static"></div>






share|improve this answer














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share|improve this answer








edited Jan 2 at 2:48

























answered Dec 31 '18 at 2:46









LeoLeo

11.4k22546




11.4k22546













  • Hi Leo!, Happy new year!, thank you so much for the answer, I'm using your suggestion, but now I have a new issue, I just update the post so you can see it better.

    – Tzu
    Jan 2 at 2:07





















  • Hi Leo!, Happy new year!, thank you so much for the answer, I'm using your suggestion, but now I have a new issue, I just update the post so you can see it better.

    – Tzu
    Jan 2 at 2:07



















Hi Leo!, Happy new year!, thank you so much for the answer, I'm using your suggestion, but now I have a new issue, I just update the post so you can see it better.

– Tzu
Jan 2 at 2:07







Hi Leo!, Happy new year!, thank you so much for the answer, I'm using your suggestion, but now I have a new issue, I just update the post so you can see it better.

– Tzu
Jan 2 at 2:07






















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