We need a JS code to change color div when it's rolled.



  • There is an example:

    .fixed {
      width: 100%;
      height: 50px;
      background-color: #f8f8f8;
      position: fixed;
    }
    .active {
      float: left;
      background-color: #54a58b;
      padding: 16px;
      border-right: 1px solid;
      border-color: #000;
    }
    .neactive {
      float: left;
      padding: 16px;
      border-right: 1px solid;
      border-color: #000;
    }
    <div class="fixed">
      <div id="1" class="active">200px</div>
      <div id="2" class="neactive">400px</div>
      <div id="3" class="neactive">600px</div>
      <div id="4" class="neactive">800px</div>
    </div>
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    <br>

    How do you make 400px, the other div steel active♪ with a 600-- another one ♪ active etc.?



  • Process the event. https://api.jquery.com/scroll/ ) In the processor, check the shift and change the class at the appropriate div.




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