Step1. Wireframe – HTML & CSS

Use an unordered list for your tabs, and follow up with the “tab_container” container right below it. Make note that each list item (tabs) has an attribute of “href” that matches the ID of the “.tab_content” div. This will be very important once we have jQuery pull off the actions. Also keep in mind that I used generic names like “tab1″ so its easier to understand. In reality, you should be using keywords so it can semantic and also benefit you in SEO.

HTML

<ul class="tabs">
    <li><a href="#tab1">Gallery</a></li>
    <li><a href="#tab2">Submit</a></li>
</ul>

<div class="tab_container">
    <div id="tab1" class="tab_content">
        <!--Content-->
    </div>
    <div id="tab2" class="tab_content">
       <!--Content-->
    </div>
</div>

If you have tried to create tabs before with CSS, you probably have experienced some frustration with getting the borders on the tabs correctly aligned. Below is a common problem that most people will run into.

Here is a solution I came up with that took care of this annoying issue. Check out the image below and also take a look at the CSS and its supporting comments for a better understanding.

Tabs CSS

ul.tabs {
 margin: 0;
 padding: 0;
 float: left;
 list-style: none;
 height: 32px; /*--Set height of tabs--*/
 border-bottom: 1px solid #999;
 border-left: 1px solid #999;
 width: 100%;
}
ul.tabs li {
 float: left;
 margin: 0;
 padding: 0;
 height: 31px; /*--Subtract 1px from the height of the unordered list--*/
 line-height: 31px; /*--Vertically aligns the text within the tab--*/
 border: 1px solid #999;
 border-left: none;
 margin-bottom: -1px; /*--Pull the list item down 1px--*/
 overflow: hidden;
 position: relative;
 background: #e0e0e0;
}
ul.tabs li a {
 text-decoration: none;
 color: #000;
 display: block;
 font-size: 1.2em;
 padding: 0 20px;
 border: 1px solid #fff; /*--Gives the bevel look with a 1px white border inside the list item--*/
 outline: none;
}
ul.tabs li a:hover {
 background: #ccc;
}
html ul.tabs li.active, html ul.tabs li.active a:hover  { /*--Makes sure that the active tab does not listen to the hover properties--*/
 background: #fff;
 border-bottom: 1px solid #fff; /*--Makes the active tab look like it's connected with its content--*/
}

Tab Content CSS

.tab_container {
 border: 1px solid #999;
 border-top: none;
 overflow: hidden;
 clear: both;
 float: left; width: 100%;
 background: #fff;
}
.tab_content {
 padding: 20px;
 font-size: 1.2em;
}

Step 2. Activate the Tabs – jQuery

For those who are not familiar with jQuery, check out their site for a general overview.
The following script contains comments explaining which jQuery actions are being performed.

$(document).ready(function() {

 //When page loads...
 $(".tab_content").hide(); //Hide all content
 $("ul.tabs li:first").addClass("active").show(); //Activate first tab
 $(".tab_content:first").show(); //Show first tab content

 //On Click Event
 $("ul.tabs li").click(function() {

  $("ul.tabs li").removeClass("active"); //Remove any "active" class
  $(this).addClass("active"); //Add "active" class to selected tab
  $(".tab_content").hide(); //Hide all tab content

  var activeTab = $(this).find("a").attr("href"); //Find the href attribute value to identify the active tab + content
  $(activeTab).fadeIn(); //Fade in the active ID content
  return false;
 });

});