由CSS动画引起的堆叠问题

Question

我正在尝试构建的主页顶部有一个搜索区域。搜索区域包含一个文本输入和两个下拉框，以及提交或“搜索”按钮。

我试图将animate.css中的淡入淡出动画添加到我正在使用的Wordpress小部件中，这有效。但是，下拉框现在与下面的容器div重叠。

您可以看到添加了动画的版本here

和here是没有动画的旧版本，其中下拉框按原样显示。

有没有人知道如何保持动画而不影响堆叠顺序或修复？

谢谢！

一些相关的源/样式代码如下所示

<form class="job_search_form" action="http://dev-pantri.pantheonsite.io/profiles/" method="GET">

<div class="search_jobs">

    <div class="search_keywords">
        <label for="search_keywords">Keywords</label>
        <input type="text" name="search_keywords" id="search_keywords" placeholder="What are you looking for?" />
    </div>

    <div class="search_location">
        <label for="search_location">Location</label>
        <input type="text" name="search_location" id="search_location" placeholder="Location" />
    </div>


    <div class="search_categories">
        <label for="search_categories">Category</label>
        <select name='search_categories[]' id='search_categories' class='job-manager-category-dropdown '  data-placeholder='Choose a category&hellip;' data-no_results_text='No results match' data-multiple_text='Select Some Options'>
 <option value="">All categories</option>   
 <option class="level-0" value="44">Arts and Entertainment</option>
 <option class="level-1" value="53">Nightclubs</option>
 <option class="level-0" value="59">Bars</option>
 <option class="level-0" value="61">Lodging</option>
 <option class="level-1" value="62">Hotels</option>
 <option class="level-0" value="63">Nightlife</option>
 <option class="level-0" value="58">Outdoors</option>
 <option class="level-0" value="54">Restaurants</option>
</select>
    </div>


    <div class="filter_wide filter_by_tag">Filter by tag: <span class="filter_by_tag_cloud"></span></div><select  name='search_region' id='search_region' class='search_region' >
<option value='0'>All Regions</option>
<option class="level-0" value="55">Annex</option>
<option class="level-0" value="56">Beaconsfield Village</option>
<option class="level-0" value="57">Bloordale Village</option>
<option class="level-0" value="40">Casa Loma</option>
<option class="level-0" value="39">Corktown</option>
<option class="level-0" value="22">Downtown Core</option>
<option class="level-0" value="23">Dufferin Grove</option>
<option class="level-0" value="24">Entertainment District</option>
<option class="level-0" value="25">Fashion District</option>
<option class="level-0" value="21">Harbourfront</option>
<option class="level-0" value="20">Little Italy</option>
<option class="level-0" value="16">Parkdale</option>
<option class="level-0" value="15">Trinity Bellwoods</option>

    

<p class="filter-by-type-label">Filter by type:</p><input type="hidden" id="search_context" name="search_context" value="22" /> <ul class="job_types">
                <li><label for="job_type_freelance" class="freelance"><input type="checkbox" name="filter_job_type[]" value="freelance"  id="job_type_freelance" /> Freelance</label></li>
                <li><label for="job_type_full-time" class="full-time"><input type="checkbox" name="filter_job_type[]" value="full-time"  id="job_type_full-time" /> Full Time</label></li>
                <li><label for="job_type_internship" class="internship"><input type="checkbox" name="filter_job_type[]" value="internship"  id="job_type_internship" /> Internship</label></li>
                <li><label for="job_type_part-time" class="part-time"><input type="checkbox" name="filter_job_type[]" value="part-time"  id="job_type_part-time" /> Part Time</label></li>
                <li><label for="job_type_temporary" class="temporary"><input type="checkbox" name="filter_job_type[]" value="temporary"  id="job_type_temporary" /> Temporary</label></li>
        </ul>
<input type="hidden" name="filter_job_type[]" value="" />
<button type="submit" data-refresh="Loading..." data-label="Search" name="update_results" class="update_results">Search</button><div class="showing_jobs"></div></form>

CSS：

.animated {
    -webkit-animation-duration: 1s;
    animation-duration: 1s;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
}

.fadeInUp {
    -webkit-animation-name: fadeInUp;
    animation-name: fadeInUp;
}

Answer 1

您需要在搜索区域容器div中添加z-index。请记住，z-index仅适用于定位元素（绝对，相对，固定）。使用您网站的动画版本，我通过开发工具添加了内联样式：

style="position:relative; z-index:10"

这似乎有用 - 在你的CSS中尝试：