The code for today is a fully functional CSS3-only tabstrip, which works without a single line of JavaScript and natively supports keyboard arrow navigation. If you don’t feel like reading the explanations that follow, you can download the example straight away.
The CSS
In short – we have a list with radio buttons, <label />s and <div />s. We hide each <div />, which is the content of the tab according to the checked state of the radio button. The <label /> is used as the button of the tab.
/*
* @CSS3 Tabstrip
* @author Martin Ivanov
* @website http://wemakesites.net
* @blog http://acidmartin.wordpress.com/
* @twitter https://twitter.com/wemakesitesnet
**/
.css3-tabstrip ul,
.css3-tabstrip li
{
margin: 0;
padding: 0;
list-style: none;
}
.css3-tabstrip,
.css3-tabstrip input[type="radio"]:checked + label
{
position: relative;
}
.css3-tabstrip li,
.css3-tabstrip input[type="radio"] + label
{
display: inline-block;
}
.css3-tabstrip li > div,
.css3-tabstrip input[type="radio"]
{
position: absolute;
}
.css3-tabstrip li > div,
.css3-tabstrip input[type="radio"] + label
{
border: solid 1px #ccc;
}
.css3-tabstrip
{
font: normal 11px Arial, Sans-serif;
color: #404040;
}
.css3-tabstrip li
{
vertical-align: top;
}
.css3-tabstrip li:first-child
{
margin-left: 8px;
}
.css3-tabstrip li > div
{
top: 33px;
bottom: 0;
left: 0;
width: 100%;
padding: 8px;
overflow: auto;
background: #fff;
-moz-box-sizing: border-box;
-webkit-box-sizing: border-box;
box-sizing: border-box;
}
.css3-tabstrip input[type="radio"] + label
{
margin: 0 2px 0 0;
padding: 0 18px;
line-height: 32px;
background: #f1f1f1;
text-align: center;
border-radius: 5px 5px 0 0;
cursor: pointer;
-moz-user-select: none;
-webkit-user-select: none;
user-select: none;
}
.css3-tabstrip input[type="radio"]:checked + label
{
z-index: 1;
background: #fff;
border-bottom-color: #fff;
cursor: default;
}
.css3-tabstrip input[type="radio"]
{
opacity: 0;
}
.css3-tabstrip input[type="radio"] ~ div
{
display: none;
}
.css3-tabstrip input[type="radio"]:checked:not(:disabled) ~ div
{
display: block;
}
.css3-tabstrip input[type="radio"]:disabled + label
{
opacity: .5;
cursor: no-drop;
}
The Markup
In the example below, the first tab is selected by default, because the radio button, associated with it has the checked attribute. You can set arbitrary tab to selected by default like that.
<div class="css3-tabstrip">
<ul>
<li>
<input type="radio" name="css3-tabstrip-0" checked="checked" id="css3-tabstrip-0-0" /><label for="css3-tabstrip-0-0">Home</label>
<div>
<h3>What is Lorem Ipsum</h3>
<p>Lorem Ipsum is simply dummy text of the printing and
typesetting industry. Lorem Ipsum has been the industry's
standard dummy text ever since the 1500s, when an unknown
printer took a galley of type and scrambled it to make a
type specimen book. It has survived not only five centuries,
but also the leap into electronic typesetting, remaining
essentially unchanged. It was popularised in the 1960s
with the release of Letraset sheets containing Lorem
Ipsum passages, and more recently with desktop publishing
software like Aldus PageMaker including
versions of Lorem Ipsum.</p>
</div>
</li><li>
<input type="radio" name="css3-tabstrip-0" id="css3-tabstrip-0-1" /><label for="css3-tabstrip-0-1">About Us</label>
<div>
<h3>Why do we use it?</h3>
<p>It is a long established fact that a reader will be distracted
by the readable content of a page when looking at its layout.
The point of using Lorem Ipsum is that it has a more-or-less
normal distribution of letters, as opposed to using 'Content
here, content here', making it look like readable English.
Many desktop publishing packages and web page editors
now use Lorem Ipsum as their default model text, and a
search for 'lorem ipsum' will uncover many web sites still
in their infancy. Various versions have evolved over the
years, sometimes by accident, sometimes on purpose
(injected humour and the like).</p>
</div>
</li><li>
<input type="radio" name="css3-tabstrip-0" id="css3-tabstrip-0-2" /><label for="css3-tabstrip-0-2">Portfolio</label>
<div>
<h3>Where does it come from?</h3>
<p>Contrary to popular belief, Lorem Ipsum is not simply
random text. It has roots in a piece of classical
Latin literature from 45 BC, making it over 2000 years
old. Richard McClintock, a Latin professor at Hampden-Sydney
College in Virginia, looked up one of the more obscure
Latin words, consectetur, from a Lorem Ipsum passage,
and going through the cites of the word in classical
literature, discovered the undoubtable source. Lorem
Ipsum comes from sections 1.10.32 and 1.10.33 of "de
Finibus Bonorum et Malorum" (The Extremes of Good and Evil)
by Cicero, written in 45 BC. This book is a treatise on
the theory of ethics, very popular during the Renaissance.
The first line of Lorem Ipsum, "Lorem ipsum dolor sit amet..",
comes from a line in section 1.10.32.</p>
</div>
</li><li>
<input type="radio" name="css3-tabstrip-0" id="css3-tabstrip-0-3" disabled="disabled" /><label for="css3-tabstrip-0-3">Contact Us</label>
<div>
<h3>Where can I get some?</h3>
<p>There are many variations of passages of Lorem Ipsum available,
but the majority have suffered alteration in some form,
by injected humour, or randomised words which don't look
even slightly believable. If you are going to use a
passage of Lorem Ipsum, you need to be sure there isn't
anything embarrassing hidden in the middle of text. All
the Lorem Ipsum generators on the Internet tend to
repeat predefined chunks as necessary, making this the
first true generator on the Internet. It uses a dictionary
of over 200 Latin words, combined with a handful of model
sentence structures, to generate Lorem Ipsum which looks
reasonable. The generated Lorem Ipsum is therefore
always free from repetition, injected humour, or
non-characteristic words etc.</p>
</div>
</li>
</ul>
</div>
Finishing Touches
What’s left is to set width and height to the tabstrip. This should be done on the outermost element. If you have different tabstrips on the same page, you can use it’s, secondary classes, etc. In the example page, we have just one tabstrip, so we will use the base class:
.css3-tabstrip
{
width: 440px;
height: 220px;
}
Supported Browsers
- Mozilla Firefox
- Google Chrome
- Apple Safari
- Opera
- Internet Explorer 9 and above
If you like this post, maybe you will follow me on Twitter or visit my personal website for other cool stuff. You can also try out the demo or download the example from this link.
Enjoy the weekend!
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