Question

尝试在菜单中更改btns的颜色，具体取决于根据div的滚动..但不能正常工作.. Added a pic以帮助理解我想要做什么。

html menu btns：

<div class="left-bar-preview">
    <div class="image mini-sub"><img class="icon-image" src="../images/human.svg" width="42">
    </div>
    <a class="mini-sub w-inline-block" href="#" id="name-btn">
      <div></div>
    </a>
    <a class="mini-sub w-inline-block" href="#" id="style-btn">
      <div></div>
    </a>
    <a class="mini-sub w-inline-block" href="#" id="position-btn">
      <div></div>
    </a>
    <a class="mini-sub w-inline-block" href="#" id="information-btn">
      <div></div>
    </a>
    <a class="mini-sub w-inline-block" href="#" id="budget-btn">
      <div></div>
    </a>
    <a class="mini-sub w-inline-block" href="#" id="photos-btn">
      <div></div>
    </a>
  </div>

html div：

<div class="name preview-content w-clearfix" data-ix="on-scroll-light-up" id="name-div">
    <h4 class="field-box spacing"><strong>Name</strong></h4>
    <h4>My new tattoo</h4>
  </div>
  <div class="name preview-content w-clearfix" id="style-div">
    <h4 class="field-box spacing"><strong>Style</strong></h4>
    <h4>Heading</h4>
  </div>
  <div class="name preview-content w-clearfix" id="position-div">
    <h4 class="field-box spacing"><strong>Position on body</strong></h4>
    <h4>Black &amp; White</h4>
  </div>
  <div class="name preview-content w-clearfix" id="side-div">
    <h4 class="field-box spacing"><strong>Side</strong></h4>
    <h4>Right</h4>
  </div>
  <div class="name preview-content w-clearfix" id="information-div">
    <h4 class="field-box spacing"><strong>Brief</strong></h4>
    <h4>"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."<br>"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."<br>"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."</h4>
  </div>
  <div class="name preview-content w-clearfix" id="budget-div">
    <h4 class="field-box spacing"><strong>Budget</strong></h4>
    <h4>$200-$400</h4>
  </div>
  <div class="name preview-content w-clearfix" id="photos-div">
    <h4 class="field-box spacing"><strong>Photos</strong></h4>
  </div>
</div>

的javascript：

<script>
$(window).scroll(function(){;
    w = Math.floor( $(window).scrollTop() );  
    $('.mini-sub').css( 'background-color', '' ); 
    if(w<=$("#name-div").offset().top){
         $("#name-btn").css( 'background-color', '#972663' );   
    }else if(w<=$("#style-div").offset().top){
         $("#style-btn").css( 'background-color', '#972663' );   
    }else if(w<=$("#position-div").offset().top){
         $("#position-btn").css( 'background-color', '#972663' );   
    }else if(w<=$("#information-div").offset().top){
         $("#information-btn").css( 'background-color', '#972663' );   
    }else if(w<=$("#budget-div").offset().top){
         $("#budget-btn").css( 'background-color', '#972663' ); 
    }else{
         $("#photos-div").css( 'background-color', '#972663' );   
         }

}); 
</script>

Answer 1

这是你在找什么 - JS代码：

$(".right").scroll(function(){
var st = $(this).scrollTop();
if(st <= 50){
    $(".A").css("color", "red")
}
else if(st <= 100){
    $(".B").css("color", "red")
}
else if(st <= 150){
    $(".C").css("color", "red")
}
});

https://jsfiddle.net/ashwyn/qudnauvq/

Answer 2

这是对@ MotaBOS解决方案的修改

$(".right").scroll(function(){
var st = $(this).scrollTop();
  $(".left span").css("color", "black")
if(st <= 50){

    $(".A").css("color", "red")
}
else if(st <= 100){
    $(".B").css("color", "red")
}
else {
    $(".C").css("color", "red")
}

在滚动div颜色更改

2 个答案: