所有css手风琴div默认打开（没有jquery）

Question

我正在使用它：

jsfiddle.net/wromLbq5

我希望能够同时打开多个手风琴部分，并在页面加载时打开。我的意思是，当一个人打开时，我不希望对方关闭。这可能吗？没有javascript。

（忽略所有的副手风琴 - 我只需要一层）

HTML

<ul class="accordion">

  <li id="one" class="files">
    <a href="#one">My Files<span>495</span></a>
    <ul class="sub-menu">
      <li><a href="#one"><em>01</em>Dropbox<span>42</span></a></li>
      <li><a href="#one"><em>02</em>Skydrive<span>87</span></a></li>
      <li><a href="#one"><em>03</em>FTP Server<span>366</span></a></li>
        <li><a href="#one"><em>01</em>Dropbox<span>42</span></a></li>
        <li><a href="#one"><em>01</em>Dropbox<span>42</span></a></li>
    </ul>
  </li>

  <li id="two" class="mail">
    <a href="#two">Mail<span>26</span></a>
    <ul class="sub-menu">
      <li><a href="#two"><em>01</em>Hotmail<span>9</span></a></li>
      <li><a href="#two"><em>02</em>Yahoo<span>14</span></a></li>
      <li><a href="#two"><em>03</em>Gmail<span>3</span></a></li>
    </ul>
  </li>

  <li id="three" class="cloud">
    <a href="#three">Cloud<span>58</span></a>
    <ul class="sub-menu">
      <li><a href="#three"><em>01</em>Connect<span>12</span></a></li>
      <li><a href="#three"><em>02</em>Profiles<span>19</span></a></li>
      <li><a href="#three"><em>03</em>Options<span>27</span></a></li>
    </ul>
  </li>

  <li id="four" class="sign">
    <a href="#four">Sign Out</a>
    <ul class="sub-menu">
      <li><a href="#four"><em>01</em>Log Out</a></li>
      <li><a href="#four"><em>02</em>Delete Account</a></li>
      <li><a href="#four"><em>03</em>Freeze Account</a></li>
    </ul>
  </li>

</ul>

CSS

body {margin:50px;}

/* Reset */
.accordion,
.accordion ul,
.accordion li,
.accordion a,
.accordion span {
  margin: 0;
  padding: 0;
  border: none;
  outline: none;
}
.accordion li {
  list-style: none;
}

/* Layout & Style */
.accordion li > a {
  display: block;
  position: relative;
  min-width: 110px;
  padding: 0 10px 0 40px;
  height: 32px;

  color: #fdfdfd;
  font: bold 12px/32px Arial, sans-serif;
  text-decoration: none;
  text-shadow: 0px 1px 0px rgba(0,0,0, .35);

  background: #6c6e74;
  background: -moz-linear-gradient(top,  #6c6e74 0%, #4b4d51 100%);
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#6c6e74), color-stop(100%,#4b4d51));
  background: -webkit-linear-gradient(top,  #6c6e74 0%,#4b4d51 100%);
  background: -o-linear-gradient(top,  #6c6e74 0%,#4b4d51 100%);
  background: -ms-linear-gradient(top,  #6c6e74 0%,#4b4d51 100%);
  background: linear-gradient(top,  #6c6e74 0%,#4b4d51 100%);

  -webkit-box-shadow: inset 0px 1px 0px 0px rgba(255,255,255, .1), 0px 1px 0px 0px rgba(0,0,0, .1);
  -moz-box-shadow: inset 0px 1px 0px 0px rgba(255,255,255, .1), 0px 1px 0px 0px rgba(0,0,0, .1);
  box-shadow: inset 0px 1px 0px 0px rgba(255,255,255, .1), 0px 1px 0px 0px rgba(0,0,0, .1);
}

.accordion > li:hover > a,
.accordion > li:target > a {
  color: #3e5706;
  text-shadow: 1px 1px 1px rgba(255,255,255, .2);

  /*background: url(../img/active.png) repeat-x;*/
  background: #a5cd4e;
  background: -moz-linear-gradient(top,  #a5cd4e 0%, #6b8f1a 100%);
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#a5cd4e), color-stop(100%,#6b8f1a));
  background: -webkit-linear-gradient(top,  #a5cd4e 0%,#6b8f1a 100%);
  background: -o-linear-gradient(top,  #a5cd4e 0%,#6b8f1a 100%);
  background: -ms-linear-gradient(top,  #a5cd4e 0%,#6b8f1a 100%);
  background: linear-gradient(top,  #a5cd4e 0%,#6b8f1a 100%); 
}

.accordion li > a span {
  display: block;
  position: absolute;
  top: 7px;
  right: 0;
  padding: 0 10px;
  margin-right: 10px;

  font: normal bold 12px/18px Arial, sans-serif;
  background: #404247;

  -webkit-border-radius: 15px;
  -moz-border-radius: 15px;
  border-radius: 15px;

  -webkit-box-shadow: inset 1px 1px 1px rgba(0,0,0, .2), 1px 1px 1px rgba(255,255,255, .1);
  -moz-box-shadow: inset 1px 1px 1px rgba(0,0,0, .2), 1px 1px 1px rgba(255,255,255, .1);
  box-shadow: inset 1px 1px 1px rgba(0,0,0, .2), 1px 1px 1px rgba(255,255,255, .1);
}


.accordion > li:hover > a span,
.accordion > li:target > a span {
  color: #fdfdfd;
  text-shadow: 0px 1px 0px rgba(0,0,0, .35);
  background: #3e5706;
}

/* Images */

.accordion > li > a:before {
  position: absolute;
  top: 0;
  left: 0;
  content: '';
  width: 24px;
  height: 24px;
  margin: 4px 8px;

  background-repeat: no-repeat;
  background-image: url(http://designmodo.com/demo/css3accordionmenu/img/icons.png);
  background-position: 0px 0px;
}

.accordion li.files > a:before { background-position: 0px 0px; }
.accordion li.files:hover > a:before,
.accordion li.files:target > a:before { background-position: 0px -24px; }

.accordion li.mail > a:before { background-position: -24px 0px; }
.accordion li.mail:hover > a:before,
.accordion li.mail:target > a:before { background-position: -24px -24px; }

.accordion li.cloud > a:before { background-position: -48px 0px; }
.accordion li.cloud:hover > a:before,
.accordion li.cloud:target > a:before { background-position: -48px -24px; }

.accordion li.sign > a:before { background-position: -72px 0px; }
.accordion li.sign:hover > a:before,
.accordion li.sign:target > a:before { background-position: -72px -24px; }

/* Sub Menu */

.sub-menu li a {
  color: #797979;
  text-shadow: 1px 1px 0px rgba(255,255,255, .2);

  background: #e5e5e5;
  border-bottom: 1px solid #c9c9c9;

  -webkit-box-shadow: inset 0px 1px 0px 0px rgba(255,255,255, .1), 0px 1px 0px 0px rgba(0,0,0, .1);
  -moz-box-shadow: inset 0px 1px 0px 0px rgba(255,255,255, .1), 0px 1px 0px 0px rgba(0,0,0, .1);
  box-shadow: inset 0px 1px 0px 0px rgba(255,255,255, .1), 0px 1px 0px 0px rgba(0,0,0, .1);
}

.sub-menu li:hover a { background: #efefef; }

.sub-menu li:last-child a { border: none; }

.sub-menu li > a span {
  color: #797979;
  text-shadow: 1px 1px 0px rgba(255,255,255, .2);
  background: transparent;
  border: 1px solid #c9c9c9;

  -webkit-box-shadow: none;
  -moz-box-shadow: none;
  box-shadow: none;
}

.sub-menu em {
  position: absolute;
  top: 0;
  left: 0;
  margin-left: 14px;
  color: #a6a6a6;
  font: normal 10px/32px Arial, sans-serif;
}

/* Functionality */

.accordion li > .sub-menu li {
  height: 0;
  overflow: hidden;

  -webkit-transition: height .2s ease-in-out;
  -moz-transition: height .2s ease-in-out;
  -o-transition: height .2s ease-in-out;
  -ms-transition: height .2s ease-in-out;
  transition: height .2s ease-in-out;
}

.accordion li:target > .sub-menu li {
  height: 33px;
}

我正在努力避免任何java脚本。 这可能吗？

Answer 1

仅使用css是不可能的，因为您的示例使用CSS3 :target选择器。当您单击另一个项目时，目标会更改。

你不能用css设置状态，但你可以设置它的样式。如果您想在点击后保持每个部分打开，则必须使用javascript，但是您不需要jQuery

如果您想使用javascript，这会尽可能地模仿css，同时允许手风琴保持打开状态。要关闭手风琴，只需再次点击标题。

var lists = document.querySelectorAll('.accordion > li > a'); // get list title links
for (var i = 0; i < lists.length; i++) { // for each list title link
  lists[i].href = "javascript:void()"; // stop the page from jumping
  lists[i].onclick = function(e) { // when you click the link
    var items = e.target.parentNode.querySelectorAll('li'); // get all list items that are siblings of the clicked link
    for (var x = 0; x < items.length; x++) { // for each list item
      if (items[x].style.height != '33px') { // if its not open
        items[x].style.height = '33px'; // open it
      } else { // otherwise
        items[x].style.height = '0px'; // close it
      }
    }
  };
}

将其包装在脚本标记中，然后将其放入正文的底部，或将其包装在document.onload = function() { /* Script Here */ }

中

（Demo）

注意虽然任何带有:target选择器的样式都将停止生效，但如果用户禁用了javascript，则应将其留在css中作为后备。

Answer 2

这个css使用这种风格显示所有手风琴都已关闭：

    .accordion li > .sub-menu li {
      height: 0px;
    }

您可以将其设置为33px以在页面打开时显示所有打开 - 但这会破坏功能，因为它是：目标选择器然后设置高度，从而使选定的部分显示为打开。

唯一的解决方案是进入javascript .....

Answer 3

可以吗？的是

您需要更改HTML吗？的是

漂亮吗？ 否

基本上不是Target维持状态。使用checkbox代替a替换顶级label代码。

body {margin:50px;}

/* Reset */
.accordion,
.accordion ul,
.accordion li,
.accordion label,
.accordion span {
  margin: 0;
  padding: 0;
  border: none;
  outline: none;
}
.accordion li {
  list-style: none;
}

.accordion input[type="checkbox"]{display:none;}

/* Layout & Style */
.accordion li > label, .accordion li > a  {
  display: block;
  position: relative;
  min-width: 110px;
  padding: 0 10px 0 40px;
  height: 32px;

  color: #fdfdfd;
  font: bold 12px/32px Arial, sans-serif;
  text-decoration: none;
  text-shadow: 0px 1px 0px rgba(0,0,0, .35);

  background: #6c6e74;
  background: -moz-linear-gradient(top,  #6c6e74 0%, #4b4d51 100%);
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#6c6e74), color-stop(100%,#4b4d51));
  background: -webkit-linear-gradient(top,  #6c6e74 0%,#4b4d51 100%);
  background: -o-linear-gradient(top,  #6c6e74 0%,#4b4d51 100%);
  background: -ms-linear-gradient(top,  #6c6e74 0%,#4b4d51 100%);
  background: linear-gradient(top,  #6c6e74 0%,#4b4d51 100%);

  -webkit-box-shadow: inset 0px 1px 0px 0px rgba(255,255,255, .1), 0px 1px 0px 0px rgba(0,0,0, .1);
  -moz-box-shadow: inset 0px 1px 0px 0px rgba(255,255,255, .1), 0px 1px 0px 0px rgba(0,0,0, .1);
  box-shadow: inset 0px 1px 0px 0px rgba(255,255,255, .1), 0px 1px 0px 0px rgba(0,0,0, .1);
}

.accordion > li:hover > label,
.accordion > li:target > label,
.accordion > li > input[type="checkbox"]:checked ~ label{
  color: #3e5706;
  text-shadow: 1px 1px 1px rgba(255,255,255, .2);
  
  /*background: url(../img/active.png) repeat-x;*/
  background: #a5cd4e;
  background: -moz-linear-gradient(top,  #a5cd4e 0%, #6b8f1a 100%);
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#a5cd4e), color-stop(100%,#6b8f1a));
  background: -webkit-linear-gradient(top,  #a5cd4e 0%,#6b8f1a 100%);
  background: -o-linear-gradient(top,  #a5cd4e 0%,#6b8f1a 100%);
  background: -ms-linear-gradient(top,  #a5cd4e 0%,#6b8f1a 100%);
  background: linear-gradient(top,  #a5cd4e 0%,#6b8f1a 100%); 
}

.accordion li > label span, .accordion li > a span {
  display: block;
  position: absolute;
  top: 7px;
  right: 0;
  padding: 0 10px;
  margin-right: 10px;
  
  font: normal bold 12px/18px Arial, sans-serif;
  background: #404247;
  
  -webkit-border-radius: 15px;
  -moz-border-radius: 15px;
  border-radius: 15px;

  -webkit-box-shadow: inset 1px 1px 1px rgba(0,0,0, .2), 1px 1px 1px rgba(255,255,255, .1);
  -moz-box-shadow: inset 1px 1px 1px rgba(0,0,0, .2), 1px 1px 1px rgba(255,255,255, .1);
  box-shadow: inset 1px 1px 1px rgba(0,0,0, .2), 1px 1px 1px rgba(255,255,255, .1);
}


.accordion > li:hover > label span,
.accordion > li:target > label span,
.accordion > li > input[type="checkbox"]:checked ~ label span{
  color: #fdfdfd;
  text-shadow: 0px 1px 0px rgba(0,0,0, .35);
  background: #3e5706;
}

/* Images */

.accordion > li > label:before {
  position: absolute;
  top: 0;
  left: 0;
  content: '';
  width: 24px;
  height: 24px;
  margin: 4px 8px;

  background-repeat: no-repeat;
  background-image: url(http://designmodo.com/demo/css3accordionmenu/img/icons.png);
  background-position: 0px 0px;
}

.accordion li.files > label:before { background-position: 0px 0px; }
.accordion li.files:hover > labe:before,
.accordion li.files:target > label:before { background-position: 0px -24px; }

.accordion li.mail > label:before { background-position: -24px 0px; }
.accordion li.mail:hover > label:before,
.accordion li.mail:target > label:before { background-position: -24px -24px; }

.accordion li.cloud > label:before { background-position: -48px 0px; }
.accordion li.cloud:hover > label:before,
.accordion input[type="checkbox"]:checked:before { background-position: -48px -24px; }

.accordion li.sign > label:before { background-position: -72px 0px; }
.accordion li.sign:hover > label:before,
.accordion input[type="checkbox"]:checked:before { background-position: -72px -24px; }

/* Sub Menu */

.sub-menu li > a {
  color: #797979;
  text-shadow: 1px 1px 0px rgba(255,255,255, .2);

  background: #e5e5e5;
  border-bottom: 1px solid #c9c9c9;

  -webkit-box-shadow: inset 0px 1px 0px 0px rgba(255,255,255, .1), 0px 1px 0px 0px rgba(0,0,0, .1);
  -moz-box-shadow: inset 0px 1px 0px 0px rgba(255,255,255, .1), 0px 1px 0px 0px rgba(0,0,0, .1);
  box-shadow: inset 0px 1px 0px 0px rgba(255,255,255, .1), 0px 1px 0px 0px rgba(0,0,0, .1);
}

.sub-menu li:hover a { background: #efefef; }

.sub-menu li:last-child a { border: none; }

.sub-menu li >  a span {
  color: #797979;
  text-shadow: 1px 1px 0px rgba(255,255,255, .2);
  background: transparent;
  border: 1px solid #c9c9c9;

  -webkit-box-shadow: none;
  -moz-box-shadow: none;
  box-shadow: none;
}

.sub-menu em {
  position: absolute;
  top: 0;
  left: 0;
  margin-left: 14px;
  color: #a6a6a6;
  font: normal 10px/32px Arial, sans-serif;
}

/* Functionality */

.accordion li > .sub-menu li {
  height: 0;
  overflow: hidden;

  -webkit-transition: height .2s ease-in-out;
  -moz-transition: height .2s ease-in-out;
  -o-transition: height .2s ease-in-out;
  -ms-transition: height .2s ease-in-out;
  transition: height .2s ease-in-out;
}

.accordion input[type="checkbox"]:checked ~ .sub-menu li {
  height: 33px;
}

<ul class="accordion">
      
  <li id="one" class="files">
      <input type="checkBox" id="cbOne" checked="checked" /><label for="cbOne" >My Files<span>495</span></label>
    <ul class="sub-menu">
      <li><a href="#one"><em>01</em>Dropbox<span>42</span></a></li>
      <li><a href="#one"><em>02</em>Skydrive<span>87</span></a></li>
      <li><a href="#one"><em>03</em>FTP Server<span>366</span></a></li>
        <li><a href="#one"><em>01</em>Dropbox<span>42</span></a></li>
        <li><a href="#one"><em>01</em>Dropbox<span>42</span></a></li>
    </ul>
  </li>
  
  <li id="two" class="mail">
      <input type="checkBox" id="cbTwo" checked="checked" /><label for="cbTwo" >Mail<span>26</span></label>
    <ul class="sub-menu">
      <li><a href="#two"><em>01</em>Hotmail<span>9</span></a></li>
      <li><a href="#two"><em>02</em>Yahoo<span>14</span></a></li>
      <li><a href="#two"><em>03</em>Gmail<span>3</span></a></li>
    </ul>
  </li>
  
  <li id="three" class="cloud">
      <input type="checkBox" id="cbThree" checked="checked" /><label for="cbThree" >Cloud<span>58</span></label>
    <ul class="sub-menu">
      <li><a href="#three"><em>01</em>Connect<span>12</span></a></li>
      <li><a href="#three"><em>02</em>Profiles<span>19</span></a></li>
      <li><a href="#three"><em>03</em>Options<span>27</span></a></li>
    </ul>
  </li>
  
  <li id="four" class="sign">
      <input type="checkBox" id="cbFour" checked="checked" /><label for="cbFour" >Sign Out</label>
    <ul class="sub-menu">
      <li><a href="#four"><em>01</em>Log Out</a></li>
      <li><a href="#four"><em>02</em>Delete Account</a></li>
      <li><a href="#four"><em>03</em>Freeze Account</a></li>
    </ul>
  </li>

</ul>

看马！没有Javascript！