Stump the Panel: SharePoint Q&A

$(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;
   });

});

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: 800px;
}
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;--->
   font-size: 14px;
   font-family:arial;
   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_container {
   border: 1px solid #999;
   border-top: none;
   overflow: hidden;
   clear: both;
   float: left; width: 800px;
   background: #fff;
   height:500px;
}
.tab_content {
   padding: 20px;
   font-size: 14px;
      <!---font size was 1.2em ----->
}


<ul class="tabs">
    <li><a href="#tab0">Test 0</a></li>
    <li><a href="#tab1">Test 1</a></li>
    <li><a href="#Tab2">Test 2</a></li>
    <li><a href="#tab3">Test 3</a></li>
    <li><a href="#tab4">Test 4</a></li>
</ul>

<div class="tab_container">
<div id="tab0" class="tab_content">
        <!--Content-->
<p>Test</p>
<ul>
<li> TEST Doc: </li>
<li> Test </li>
<li> Test 1 </li>
<li> Test 2 </li>
</ul>

     </div>
    <div id="tab1" class="tab_content">
        <!--Content-->
       <p>Test Section #1</p>
    </div>
    <div id="tab2" class="tab_content">
       <p>Test Section #2</p>
    </div>
<div id="tab3" class="tab_content">
       <p>Test Section #3</p>
    </div>
<div id="tab4" class="tab_content">
       <p>Test Section #4</p>
    </div>
</div>