如何防止我的平滑滚动jquery函数修改div元素的内容？

Question

我正在使用jquery来创建平滑滚动效果。当用户单击我页面上的“ Person1”时，jquery使用锚链接成功向下滚动到页面底部的灰色div。但是，它修改了所有绿色div的内容，因此它们的内容被向上推。这是为什么？如何在不影响绿色div内容的情况下使页面向下滚动？

<script src="https://code.jquery.com/jquery-1.9.0.min.js" integrity="sha256-f6DVw/U4x2+HjgEqw5BZf67Kq/5vudRZuRkljnbF344=" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://louisville.edu/artsandsciences/styles/experimental/flexslider.css" type="text/css" media="screen" />
<script defer src="https://cdnjs.cloudflare.com/ajax/libs/flexslider/2.7.1/jquery.flexslider.js"></script>
<script defer src="https://gist.githubusercontent.com/bergantine/3868451/raw/a67f7e7989068013bfd0341cd523b843105c6d8d/gistfile1.js"></script> <!--referred to as modernizr.js in the flexslider package-->

<link href='https://fonts.googleapis.com/css?family=Comfortaa' rel='stylesheet'>


<script type="text/javascript">

            $(window).load(function() {
              $('#carousel').flexslider({
                animation: "slide",
                controlNav: false,
                animationLoop: false,
                slideshow: false,
                itemWidth: 210,
                itemMargin: 5,
                asNavFor: '#slider'
              });

              $('#slider').flexslider({
                animation: "slide",
                controlNav: false,
                animationLoop: false,
                slideshow: false,
                sync: "#carousel"
              });
            });

    $(document).on('click', 'a[href^="#"]', function (event) {
        event.preventDefault();
        var scrollBottom = $(window).scrollTop() + $(window).height();  
        $('div').animate({
            scrollTop: $($.attr(this, 'href')).offset().top
        }, 500);    
    });

</script>

<style>

    .flex-nav-prev, .flex-nav-next{display: none;}   /*hide the left and right arrows*/

    #BackgroundContainer{
        background-color: white; 
        height: 1180px;
        background-size: cover;
    }

    .flexslider{
        margin-top: 4px;
        border: none !important; /*overrides the flexslider.css file style*/
    }

    .flex-viewport{width: 820px;}
    .flex-active-slide{width: 820px;}

    #slider{
        background: none; 
        margin-bottom: 20px;  /*overrides the flexslider.css file style*/
        min-height: 370px; /*no longer necessary? this reserves height for the slider and makes sure that the blurb at the bottom stays there as the page loads*/
    }

    #carousel{
        height: 40px;
        width: 910px;
        margin-right: 10px;
        margin-bottom: 0px;
        background-color: transparent; 
    }

    #carousel li{
        text-align: center;
    }   

    #carousel span{
        font-family: comfortaa;
        color: #165D7A; 
        font-size: 20px;
        line-height: 37px;
        text-align: center;
    }

    .Team_Container{margin-left: 10px;}

    .grid_cell{
        width: 144px;
        height: 164px; 
        display: inline-block;
        position: relative; 
        z-index: 0;
        margin-right: 10px;
        margin-bottom: 17px;
    }

/*

    .grid_cell:hover{z-index: 1;}   

    .grid_cell div:hover{   
        height: 346px; 
        background-color: rgba(176, 196, 222, 0.9) !important; 
        border-color: #7795BF !important;
        box-shadow: 0px 8px 20px 1px grey;
    }   

    .grid_cell div div:hover{height: 160px;}    

*/  

    .profile_container{
        position: absolute;
        height: 163px;
        width: 144px;
        overflow: hidden;
        display: inline-block;
        vertical-align: top;
        background-color: rgba(207, 232, 221, 0.6); /*light green almost transparent*/
        border: 2px solid #99D1E0;
        border-radius: 5px;
        text-align: -webkit-center;
        -webkit-transition: all .3s ease;
        -moz-transition: all .3s ease;
        -ms-transition: all .3s ease;
        -o-transition: all .3s ease;
    }

    .profile_container span{
        display: block;
        width: 123px;
        margin-bottom: 5px;
        text-align: center;
        font-family: 'Comfortaa' !important;
        font-weight: bold;
        margin-right: auto;
        margin-left: auto;
        font-size: 11px;
    }

    .profile_container .employee_name{
        line-height: 18px;
        color: #395880; 
        font-size: 14px !important;
        word-spacing: 120px;
        width: 130px;
    }

    .profile_container .job_title{
        line-height: 17px;
    }

    .pic_container{
        height: 130px;
        width: 124px;
        border-radius: 150px;
        position: relative;
        margin-left: auto;
        margin-right: auto;
        margin-bottom: 16px;
        overflow: hidden;
        -webkit-transition: all .3s ease;
        -moz-transition: all .3s ease;
        -ms-transition: all .3s ease;
        -o-transition: all .3s ease;
    }

    .profile_pic{height: 160px;}

    .department_description_container{
        width: 780px;
        min-height: 90px;
        vertical-align: middle;
        border-radius: 10px;
        background: linear-gradient(#DAE0E3, #C1D3DB);
        border: solid 2px #7F9AAD;
        padding: 10px;
        z-index: 0;
        margin-bottom: 85px; /*so that the profiles above this container have room to expand downward and still be visible*/
    }

    .department_description{
        font-family: comfortaa;
        color: #304F5E;
        font-size: 16px;
    }

</style>


<div id="BackgroundContainer">

<br>

<div id="carousel" class="flexslider">
  <ul class="slides">
    <li><a href="#"><span>Department1</span></a></li>
    <li><a href="#"><span>Department2</span></a></li>
  </ul>
</div>  

<div id="slider" class="flexslider">
  <ul class="slides">
    <li>
        <div class="Team_Container">    
            <div class="grid_cell">
                <a href="#department_description_container1">
                <div class="profile_container">
                    <div class="pic_container"><img class="profile_pic" src="http://www.rhylcomicanddiscco.co.uk/wp-content/uploads/2016/04/generic-man-profile.jpg"></div>             
                    <span class="employee_name">Person1 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>
                </a>
            </div>

            <div class="grid_cell">
                <div class="profile_container">
                    <div class="pic_container"></div>
                    <span class="employee_name">Person2 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>
            </div>

            <div class="grid_cell">
                <div class="profile_container">
                    <div class="pic_container"></div>
                    <span class="employee_name">Person3 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>
            </div>
            <div class="grid_cell"> 
                <div class="profile_container">
                    <div class="pic_container"></div>
                    <span class="employee_name">Person4 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>
            </div>

            <div class="grid_cell">
                <div class="profile_container">
                    <div class="pic_container"></div>
                    <span class="employee_name">Person5 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>
            </div>

            <div class="grid_cell">
                <div class="profile_container"><div class="pic_container"></div>
                    <span class="employee_name">Person6 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>
            </div>

            <div class="grid_cell">
                <div class="profile_container"><div class="pic_container"></div>
                    <span class="employee_name">Person7 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>  
            </div>

            <div class="grid_cell">
                <div class="profile_container"><div class="pic_container"></div>
                    <span class="employee_name">Person8 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>  
            </div>

            <div class="grid_cell">
                <div class="profile_container"><div class="pic_container"></div>
                    <span class="employee_name">Person9 LastName</span> <br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>
            </div>

            <div class="grid_cell">
                <div class="profile_container"><div class="pic_container"></div>
                    <span class="employee_name">Person10 LastName</span>    <br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>
            </div>

            <div class="grid_cell">
                <div class="profile_container"><div class="pic_container"></div>
                    <span class="employee_name">Person11 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>
            </div>

            <div class="grid_cell">
                <div class="profile_container"><div class="pic_container"></div>
                    <span class="employee_name">Person12 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>  
            </div>

            <div class="grid_cell">
                <div class="profile_container"><div class="pic_container"></div>
                    <span class="employee_name">Person13 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>
            </div>

            <div class="grid_cell">
                <div class="profile_container"><div class="pic_container"></div>
                    <span class="employee_name">Person14 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>
            </div>

                <div class="grid_cell">
                <div class="profile_container"><div class="pic_container"></div>
                    <span class="employee_name">Person15 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>
            </div>

            <div class="grid_cell">
                <div class="profile_container"><div class="pic_container"></div>
                    <span class="employee_name">Person16 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>
            </div>

            <div class="grid_cell">
                <div class="profile_container"><div class="pic_container"></div>
                    <span class="employee_name">Person17 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>
            </div>

            <div id="department_description_container1" class="department_description_container">
                <span class="department_description">Department 1 does X, Y, and Z.</span>  
            </div>  

        </div>          
    </li>

    <li>
        <div class="Team_Container">
            <div class="grid_cell">         
                <div class="profile_container">
                    <div class="pic_container"></div>
                    <span class="employee_name">Person1 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>
            </div>

            <div class="grid_cell">
                <div class="profile_container">
                    <div class="pic_container"></div>
                    <span class="employee_name">Person2 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>  
            </div>

            <div class="grid_cell">
                <div class="profile_container">
                <div class="pic_container"></div>
                    <span class="employee_name">Person3 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>  
            </div>

            <div class="grid_cell">
                <div class="profile_container">
                    <div class="pic_container"></div>
                    <span class="employee_name">Person4 LastName</span> <br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>
            </div>

            <div class="grid_cell">
                <div class="profile_container">
                    <div class="pic_container"></div>
                    <span class="employee_name">Person5 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>  
            </div>

            <div class="grid_cell"> 
                <div class="profile_container"><div class="pic_container"></div>
                    <span class="employee_name">Person6 LastName</span><br>
                    <span class="job_title">Job Position</span>
                    <span>Department</span>
                </div>
            </div>



            <div class="department_description_container">
                <span class="department_description">Department 2 does U, V, and W.</span>  
            </div>      

        </div>  
    </li>

  </ul>
</div>

</div>

Answer 1

您在此代码段中使用的选择器过于笼统，因此您使用的是div，这意味着单击链接时，它将影响页面上的所有div。

$('div').animate({
  scrollTop: $($.attr(this, 'href')).offset().top
}, 500);    

您感兴趣的是两个选择器，即html和body标签，代码如下：

$('html, body').animate({
  scrollTop: $($.attr(this, 'href')).offset().top
}, 500);