Tab sample

A sample HTML, CSS and JS for tabs.

by ginpei

HTML

<div class="tab">
    <a class="tab-button active" href="#about">About</a>
    <a class="tab-button" href="#detail">Detail</a>
    <a class="tab-button" href="#contact">Contact</a>
    <article id="about" class="tab-panel active">
        <h1>About</h1>
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>
        <p>Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</p>
    </article>
    <article id="detail" class="tab-panel">
        <h1>Detail</h1>
        <p>Sed ut perspiciatis, unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam eaque ipsa, quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt, explicabo.</p>
        <p>Nemo enim ipsam voluptatem, quia voluptas sit, aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos, qui ratione voluptatem sequi nesciunt, neque porro quisquam est, qui dolorem ipsum, quia dolor sit, amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt, ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur?</p>
        <p>Quis autem vel eum iure reprehenderit, qui in ea voluptate velit esse, quam nihil molestiae consequatur, vel illum, qui dolorem eum fugiat, quo voluptas nulla pariatur?</p>
        <p>At vero eos et accusamus et iusto odio dignissimos ducimus, qui blanditiis praesentium voluptatum deleniti atque corrupti, quos dolores et quas molestias excepturi sint, obcaecati cupiditate non provident, similique sunt in culpa, qui officia deserunt mollitia animi, id est laborum et dolorum fuga.</p>
        <p>Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio, cumque nihil impedit, quo minus...

CSS

.tab {
    margin: 4px;
}
.tab-button {
    background-color: #eee;
    border: 1px #ccc;
    border-style: solid solid none;
    border-radius: 4px 4px 0 0;
    color: inherit;
    float: left;
    line-height: 1em;
    margin-right: 1px;
    padding: 2px 4px;
    text-decoration: none;
}
.tab-panel {
    background-color: #f9f9f9;
    border: solid 1px #ccc;
    clear: both;
    display: none;
}
.tab-button.active {
    background-color: #f9f9f9;
    font-weight: bold;
    margin-bottom: -1px;
    padding-bottom: 3px;
}
.tab-panel.active {
    display: block;
}

/* -------- */

article {
    font-family: serif;
    padding: 4px;
}
article h1 {
    color: #f9f9f9;
    float: right;
    font-size: 2em;
    font-weight: bold;
    margin: 0 0 .5em 1em;
    text-shadow:
        -1px -1px 0 #999,
         1px  1px 0 #fff;
}
article p::first-letter {
    float: left;
    font-size: 3em;
    font-style: oblique;
    font-weight: bold;
    line-height: 1em;
    margin: 0 .1em;
}
#contact input,
#contact textarea,
#contact button {
    box-sizing: border-box;
    display: block;
    margin-bottom: .5em;
    width: 100%;
}
#contact button {
    margin-left: auto;
    margin-right: auto;
    width: 80%;
}

JavaScript

$('.tab-button').click(function(event) {
    var $button = $(this);
    var $container = $button.closest('.tab');
    
    // prevent jumping
    event.preventDefault();
    
    // find target tab panel
    var $panel = $container.children('.tab-panel')
        .eq($button.index('.tab-button'));
    
    // deactivate last target
    $container.children('.active')
        .removeClass('active');
    
    // activate current target
    $button.addClass('active');
    $panel.addClass('active');
});