DOM Lab - UI Tabs

by Ryan Morris

HTML

<script src="https://code.jquery.com/jquery-2.2.1.min.js"></script>
<div class="tabbed">
    <ul>
        <li class="active"><a href="#tab1">Tab 1</a>
        </li>
        <li><a href="#tab1">Tab 2</a>
        </li>
        <li><a href="#tab1">Tab 3</a>
        </li>
    </ul>
    <div id="tab1">Tab 1</div>
    <div id="tab2">Tab 2</div>
    <div id="tab3">Tab 3</div>
</div>

CSS

.tabbed ul {
    list-style:none;
    margin:0;
    padding:0;
}
.tabbed ul li {
    float:left;
    position:relative;
    background-color:#fff;
    margin-bottom:-1px;
}
.tabbed ul li a {
    display:block;
    padding:3px 5px;
    border:1px solid #ccc;
    border-bottom:0;
    color:green;
    text-decoration:none;
}
.tabbed ul li.active a {
    border-bottom:1px solid #fff;
}
.tabbed > div {
    border:1px solid #ccc;
    clear:both;
    padding:10px;
}
.tabbed > div {
    display:none;
}
.tabbed > div:first-of-type {
    display:block;
}

JavaScript

// Build some basic UI tabs
//
// Desired behavior:
//
// When user clicks a tab
//    Part 1:
//    the related div (by id) is displayed
//    any other unrelated divs are hidden
//
//    Part 2:
//    the clicked tab becomes marked as "active", via a class
//    any other active tabs are no longer marked active
//
// Hint:
//    You'll use the "click" event, and delegation is best