Show hide divs on click in HTML and CSS without jQuery

Question

I want something very similar to Theming collapsible headers located here:

http://jquerymobile.com/demos/1.2.0-alpha.1/docs/content/content-collapsible.html

Without using JQuery, is this possible?

It's for a mobile site but the page is always going to be offline so I dont really want to use jquery. Also giving custom styling to jquery mobile is alot harder than using pure css and styling it yourself.

Answer 1

Using label and checkbox input

Keeps the selected item opened and togglable.

.collapse{
  cursor: pointer;
  display: block;
  background: #cdf;
}
.collapse + input{
  display: none; /* hide the checkboxes */
}
.collapse + input + div{
  display:none;
}
.collapse + input:checked + div{
  display:block;
}

<label class="collapse" for="_1">Collapse 1</label>
<input id="_1" type="checkbox"> 
<div>Content 1</div>

<label class="collapse" for="_2">Collapse 2</label>
<input id="_2" type="checkbox">
<div>Content 2</div>

Using label and named radio input

Similar to checkboxes, it just closes the already opened one.
Use name="c1" type="radio" on both inputs.

.collapse{
  cursor: pointer;
  display: block;
  background: #cdf;
}
.collapse + input{
  display: none; /* hide the checkboxes */
}
.collapse + input + div{
  display:none;
}
.collapse + input:checked + div{
  display:block;
}

<label class="collapse" for="_1">Collapse 1</label>
<input id="_1" type="radio" name="c1"> 
<div>Content 1</div>

<label class="collapse" for="_2">Collapse 2</label>
<input id="_2" type="radio" name="c1">
<div>Content 2</div>

Using tabindex and :focus

Similar to radio inputs, additionally you can trigger the states using the Tab key.
Clicking outside of the accordion will close all opened items.

.collapse > a{
  background: #cdf;
  cursor: pointer;
  display: block;
}
.collapse:focus{
  outline: none;
}
.collapse > div{
  display: none;
}
.collapse:focus div{
  display: block; 
}

<div class="collapse" tabindex="1">
  <a>Collapse 1</a>
  <div>Content 1....</div>
</div>

<div class="collapse" tabindex="1">
  <a>Collapse 2</a>
  <div>Content 2....</div>
</div>

Using :target

Similar to using radio input, you can additionally use Tab and ⏎ keys to operate

.collapse a{
  display: block;
  background: #cdf;
}
.collapse > div{
  display:none;
}
.collapse > div:target{
  display:block; 
}

<div class="collapse">
  <a href="#targ_1">Collapse 1</a>
  <div id="targ_1">Content 1....</div>
</div>

<div class="collapse">
  <a href="#targ_2">Collapse 2</a>
  <div id="targ_2">Content 2....</div>
</div>

Using <detail> and <summary> tags (pure HTML)

You can use HTML5's detail and summary tags to solve this problem without any CSS styling or Javascript. Please note that these tags are not supported by Internet Explorer.

<details>
  <summary>Collapse 1</summary>
  <p>Content 1...</p>
</details>
<details>
  <summary>Collapse 2</summary>
  <p>Content 2...</p>
</details>

Answer 2

You can use a checkbox to simulate onClick with CSS:

input[type=checkbox]:checked + p {
    display: none;
}

JSFiddle

Adjacent sibling selectors

Answer 3

I like Roko's answer, and added a few lines to it so that you get a triangle that points right when the element is hidden, and down when it is displayed:

.collapse { font-weight: bold; display: inline-block; }
.collapse + input:after { content: " \25b6"; display: inline-block; }
.collapse + input:checked:after { content: " \25bc"; display: inline-block; }
.collapse + input { display: inline-block; -webkit-appearance: none; -o-appearance:none; -moz-appearance:none;  }
.collapse + input + * { display: none; }
.collapse + input:checked + * { display: block; }

Answer 4

Of course! jQuery is just a library that utilizes javascript after all.

You can use document.getElementById to get the element in question, then change its height accordingly, through element.style.height.

elementToChange = document.getElementById('collapseableEl');
elementToChange.style.height = '100%';

Wrap that up in a neat little function that caters for toggling back and forth and you have yourself a solution.