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技术频道 - html技术

纯CSS3实现内容折叠效果

作者:admin    时间:2020-8-1 13:45:55    浏览:

当多个项目的内容需要在同一页面里展示时，往往是只显示其中一个项目的内容而隐藏其他项目的内容，这时就需要用到内容折叠的功能，实现这一功能可以有很多方法，本文介绍如何使用纯CSS3来实现。 

纯CSS3实现内容折叠效果

纯CSS3实现内容折叠效果

demo

单选

内容折叠的单选效果，是只能显示其中一个项目的内容，隐藏其他所有项目的内容。

css代码

.ac-container{
  width: 400px;
  margin: 10px auto 30px auto;
  text-align: left;
}
.ac-container label{
  font-family: 'BebasNeueRegular', 'Arial Narrow', Arial, sans-serif;
  padding: 5px 20px;
  position: relative;
  z-index: 20;
  display: block;
  height: 30px;
  cursor: pointer;
  color: #777;
  text-shadow: 1px 1px 1px rgba(255,255,255,0.8);
  line-height: 33px;
  font-size: 19px;
  background: #ffffff;
  background: -moz-linear-gradient(top, #ffffff 1%, #eaeaea 100%);
  background: -webkit-gradient(linear, left top, left bottom, color-stop(1%,#ffffff), color-stop(100%,#eaeaea));
  background: -webkit-linear-gradient(top, #ffffff 1%,#eaeaea 100%);
  background: -o-linear-gradient(top, #ffffff 1%,#eaeaea 100%);
  background: -ms-linear-gradient(top, #ffffff 1%,#eaeaea 100%);
  background: linear-gradient(top, #ffffff 1%,#eaeaea 100%);
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ffffff', endColorstr='#eaeaea',GradientType=0 );
  box-shadow: 
    0px 0px 0px 1px rgba(155,155,155,0.3), 
    1px 0px 0px 0px rgba(255,255,255,0.9) inset, 
    0px 2px 2px rgba(0,0,0,0.1);
}
.ac-container label:hover{
  background: #fff;
}
.ac-container input:checked + label,
.ac-container input:checked + label:hover{
  background: #c6e1ec;
  color: #3d7489;
  text-shadow: 0px 1px 1px rgba(255,255,255, 0.6);
  box-shadow: 
    0px 0px 0px 1px rgba(155,155,155,0.3), 
    0px 2px 2px rgba(0,0,0,0.1);
}
.ac-container label:hover:after,
.ac-container input:checked + label:hover:after{
  content: '';
  position: absolute;
  width: 24px;
  height: 24px;
  right: 13px;
  top: 7px;
  background: transparent url(data:image/png;base64,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) no-repeat center center; 
}
.ac-container input:checked + label:hover:after{
  background-image: url(data:image/png;base64,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);
}
.ac-container input{
  display: none;
}
.ac-container article{
  background: rgba(255, 255, 255, 0.5);
  margin-top: -1px;
  overflow: hidden;
  height: 0px;
  position: relative;
  z-index: 10;
  -webkit-transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
  -moz-transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
  -o-transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
  -ms-transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
  transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
}
.ac-container article p{
  font-style: italic;
  color: #777;
  line-height: 23px;
  font-size: 14px;
  padding: 20px;
  text-shadow: 1px 1px 1px rgba(255,255,255,0.8);
}
.ac-container input:checked ~ article{
  -webkit-transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
  -moz-transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
  -o-transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
  -ms-transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
  transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
  box-shadow: 0px 0px 0px 1px rgba(155,155,155,0.3);
}
.ac-container input:checked ~ article.ac-small{
  height: 140px;
}
.ac-container input:checked ~ article.ac-medium{
  height: 180px;
}
.ac-container input:checked ~ article.ac-large{
  height: 230px;
}

html代码

<div class="container">
  <section class="ac-container">
    <div>
      <input id="ac-1" name="accordion-1" type="radio" checked />
      <label for="ac-1">关于我们</label>
      <article class="ac-large">
        <p>卡卡网（webkaka.com）建立于2009年4月，本站旨在为广大网站建设人员提供专业的网站测速和优化服务，以及为广大网民提供网络速度测试服务。<br>卡卡网是国内站长和IDC商检测网络线路和网站测速的第三方工具之一，每天为超过1万的网站提供测速服务，专业、专心、专注，为卡卡网赢得了良好的口碑和业界的肯定。</p>
      </article>
    </div>
    <div>
      <input id="ac-2" name="accordion-1" type="radio" />
      <label for="ac-2">联系方式</label>
      <article class="ac-small">
        <p>联系QQ：88888888<br>联系邮箱：admin@website.com </p>
      </article>
    </div>
    <div>
      <input id="ac-3" name="accordion-1" type="radio" />
      <label for="ac-3">广告服务</label>
      <article class="ac-medium">
        <p>卡卡网（webkaka.com）坚持以双赢互利、共同成长的合作理念，为合作伙伴提供广告服务，适合广告类型：域名、虚拟主机、服务器等与站长相关的产品，也适合投放网络通信相关的设备仪器。 </p>
      </article>
    </div>
    <div>
      <input id="ac-4" name="accordion-1" type="radio" />
      <label for="ac-4">免责声明</label>
      <article class="ac-small">
        <p>本站所有资源均来自网络收集，无意侵犯任何人的权益，若有侵权，请告知删除！</p>
      </article>
    </div>
  </section>
</div>

execcodegetcode

使用说明

通过article标签的class可设置内容框的大小，分别有ac-large，ac-medium和ac-small，它们的具体高度可在css代码里设置。

可以默认设置显示哪个内容，只需在input标签后加一个checked属性。

input标签的type属性是radio，说明这是一个单选按钮。

多选

内容折叠的多选效果，是可以显示多个项目的内容，隐藏任意项目的内容。

CSS代码

.ac-container {
    width: 400px;
    margin: 10px auto 30px auto;
    text-align: left;
}

.ac-container label {
    font-family: 'BebasNeueRegular', 'Arial Narrow', Arial, sans-serif;
    padding: 5px 20px;
    position: relative;
    z-index: 20;
    display: block;
    height: 30px;
    cursor: pointer;
    color: #777;
    text-shadow: 1px 1px 1px rgba(255,255,255,0.8);
    line-height: 33px;
    font-size: 19px;
    background: #ffffff;
    background: -moz-linear-gradient(top, #ffffff 1%, #eaeaea 100%);
    background: -webkit-gradient(linear, left top, left bottom, color-stop(1%,#ffffff), color-stop(100%,#eaeaea));
    background: -webkit-linear-gradient(top, #ffffff 1%,#eaeaea 100%);
    background: -o-linear-gradient(top, #ffffff 1%,#eaeaea 100%);
    background: -ms-linear-gradient(top, #ffffff 1%,#eaeaea 100%);
    background: linear-gradient(top, #ffffff 1%,#eaeaea 100%);
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ffffff', endColorstr='#eaeaea',GradientType=0 );
    box-shadow: 
      0px 0px 0px 1px rgba(155,155,155,0.3), 
      1px 0px 0px 0px rgba(255,255,255,0.9) inset, 
      0px 2px 2px rgba(0,0,0,0.1);
}

.ac-container label:hover {
    background: #fff;
}

.ac-container input:checked + label,
.ac-container input:checked + label:hover {
    background: #c6e1ec;
    color: #3d7489;
    text-shadow: 0px 1px 1px rgba(255,255,255, 0.6);
    box-shadow: 
      0px 0px 0px 1px rgba(155,155,155,0.3), 
      0px 2px 2px rgba(0,0,0,0.1);
}

.ac-container label:hover:after,
.ac-container input:checked + label:hover:after {
    content: '';
    position: absolute;
    width: 24px;
    height: 24px;
    right: 13px;
    top: 7px;
    background: transparent url(data:image/png;base64,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) no-repeat center center;
}

.ac-container input:checked + label:hover:after {
    background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAAJCAYAAAACTR1pAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAyBpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw/eHBhY2tldCBiZWdpbj0i77u/IiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8+IDx4OnhtcG1ldGEgeG1sbnM6eD0iYWRvYmU6bnM6bWV0YS8iIHg6eG1wdGs9IkFkb2JlIFhNUCBDb3JlIDUuMC1jMDYwIDYxLjEzNDc3NywgMjAxMC8wMi8xMi0xNzozMjowMCAgICAgICAgIj4gPHJkZjpSREYgeG1sbnM6cmRmPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5LzAyLzIyLXJkZi1zeW50YXgtbnMjIj4gPHJkZjpEZXNjcmlwdGlvbiByZGY6YWJvdXQ9IiIgeG1sbnM6eG1wPSJodHRwOi8vbnMuYWRvYmUuY29tL3hhcC8xLjAvIiB4bWxuczp4bXBNTT0iaHR0cDovL25zLmFkb2JlLmNvbS94YXAvMS4wL21tLyIgeG1sbnM6c3RSZWY9Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC9zVHlwZS9SZXNvdXJjZVJlZiMiIHhtcDpDcmVhdG9yVG9vbD0iQWRvYmUgUGhvdG9zaG9wIENTNSBXaW5kb3dzIiB4bXBNTTpJbnN0YW5jZUlEPSJ4bXAuaWlkOjIxMjY0NjgzNUEwQTExRTFBMkMwQUUyOEY2NjkzRDMyIiB4bXBNTTpEb2N1bWVudElEPSJ4bXAuZGlkOjIxMjY0Njg0NUEwQTExRTFBMkMwQUUyOEY2NjkzRDMyIj4gPHhtcE1NOkRlcml2ZWRGcm9tIHN0UmVmOmluc3RhbmNlSUQ9InhtcC5paWQ6MjEyNjQ2ODE1QTBBMTFFMUEyQzBBRTI4RjY2OTNEMzIiIHN0UmVmOmRvY3VtZW50SUQ9InhtcC5kaWQ6MjEyNjQ2ODI1QTBBMTFFMUEyQzBBRTI4RjY2OTNEMzIiLz4gPC9yZGY6RGVzY3JpcHRpb24+IDwvcmRmOlJERj4gPC94OnhtcG1ldGE+IDw/eHBhY2tldCBlbmQ9InIiPz4kGTYVAAAAlklEQVR42mJcduA0AxbACcTTgLgDiG9iU8CEQ9M6IE4A4gNArEWMRpCmjUDsAeVLAPFebJqZsGhyRVODVTMTkqYtSJpeALEhEO9A0ozibCYkTU5QsadA7ADEF4DYH0mzKFSzLkwjuiZnpJD8hUUz2NkgjbtxaGJA07wVyr8GxPdZoHH1BWrqHQbsAKQ5CIiroeq/AwQYALFQJdCqpXTVAAAAAElFTkSuQmCC);
}

.ac-container input {
    display: none;
}

.ac-container article {
    background: rgba(255, 255, 255, 0.5);
    margin-top: -1px;
    overflow: hidden;
    height: 0px;
    position: relative;
    z-index: 10;
    -webkit-transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
    -moz-transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
    -o-transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
    -ms-transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
    transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
}

.ac-container article p {
    font-style: italic;
    color: #777;
    line-height: 23px;
    font-size: 14px;
    padding: 20px;
    text-shadow: 1px 1px 1px rgba(255,255,255,0.8);
}

.ac-container input:checked ~ article {
    -webkit-transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
    -moz-transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
    -o-transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
    -ms-transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
    transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
    box-shadow: 0px 0px 0px 1px rgba(155,155,155,0.3);
}

.ac-container input:checked ~ article.ac-small {
    height: 140px;
}

.ac-container input:checked ~ article.ac-medium {
    height: 180px;
}

.ac-container input:checked ~ article.ac-large {
    height: 230px;
}

html代码

<div class="container">
    <section class="ac-container">
        <div>
            <input id="ac-1" name="accordion-1" type="checkbox" checked />
            <label for="ac-1">关于我们</label>
            <article class="ac-large">
                <p>卡卡网（webkaka.com）建立于2009年4月，本站旨在为广大网站建设人员提供专业的网站测速和优化服务，以及为广大网民提供网络速度测试服务。
                    <br>卡卡网是国内站长和IDC商检测网络线路和网站测速的第三方工具之一，每天为超过1万的网站提供测速服务，专业、专心、专注，为卡卡网赢得了良好的口碑和业界的肯定。</p>
            </article>
        </div>
        <div>
            <input id="ac-2" name="accordion-1" type="checkbox" />
            <label for="ac-2">联系方式</label>
            <article class="ac-small">
                <p>联系QQ：88888888
                    <br>联系邮箱：admin@website.com </p>
            </article>
        </div>
        <div>
            <input id="ac-3" name="accordion-1" type="checkbox" />
            <label for="ac-3">广告服务</label>
            <article class="ac-medium">
                <p>卡卡网（webkaka.com）坚持以双赢互利、共同成长的合作理念，为合作伙伴提供广告服务，适合广告类型：域名、虚拟主机、服务器等与站长相关的产品，也适合投放网络通信相关的设备仪器。 </p>
            </article>
        </div>
        <div>
            <input id="ac-4" name="accordion-1" type="checkbox" />
            <label for="ac-4">免责声明</label>
            <article class="ac-small">
                <p>本站所有资源均来自网络收集，无意侵犯任何人的权益，若有侵权，请告知删除！</p>
            </article>
        </div>
    </section>
</div>

execcodegetcode

使用说明

通过article标签的class可设置内容框的大小，分别有ac-large，ac-medium和ac-small，它们的具体高度可在css代码里设置。

可以默认设置显示哪个内容，只需在input标签后加一个checked属性。

input标签的type属性是checkbox，说明这是一个多选按钮。

标签: css  css3  内容折叠  菜单折叠  
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