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CSS

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JavaScript

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HTML 

              
                <div class="v-tab">
  
<ul class="v-tab_tab-head">
  <li class="active" rel="vtab1">Molestie lobortis</li>
  <li rel="vtab2">Venenatis</li>
  <li rel="vtab3">Ipsum</li>
  <li rel="vtab4">Rhoncus dolor nunc</li>
</ul>
  
<div class="v-tab_container">

  <div id="vtab1" class="v-tab_content">
    
    <h3>heading here</h3>
    <p>Lorem ipsum non pellentesque lacinia ullamcorper faucibus eu quisque, ut odio nisi aptent proin dictumst lorem tincidunt, accumsan nec habitasse arcu nisl lacus gravida odio elementum quis consectetur vehicula egestas.</p>
  </div>
  <!-- #tab1 -->

  <div id="vtab2" class="v-tab_content">
    <p>Dui sociosqu vitae varius nulla habitasse inceptos pharetra feugiat curabitur, nibh molestie est semper mattis malesuada viverra auctor, duis pulvinar quam diam scelerisque ut nullam condimentum ut per conubia feugiat ultricies tristique dictum.

</p>
  </div>
  <!-- #tab2 -->

  <div id="vtab3" class="v-tab_content">
    <p>Morbi cursus dapibus ut donec commodo consequat arcu turpis hendrerit luctus nulla aliquam tempor diam massa faucibus vitae vehicula, ultricies volutpat nullam phasellus dui auctor senectus morbi tellus potenti iaculis bibendum ipsum sodales non.

</p>
  </div>
  <!-- #tab3 -->

  <div id="vtab4" class="v-tab_content">
    <p>Per ligula mollis vulputate tortor urna platea non maecenas fames, maecenas ante senectus suspendisse ultrices aptent torquent laoreet scelerisque ut integer arcu magna ultricies mollis.

</p>
  </div>
  <!-- #tab4 --> 
</div>
</div>
</div>
!

CSS 

              
                
//customise here
//specify width here

$tab__head_width: 125px;
$tab__container_width: 500px;

$border-color              :#ccc;
$border-color-active       :#94399e;
$tab-hover-bg              :#f5f5f5;
$tab-head-color            :#333;
$tab-bg                    :#e5e5e5;
$active-tab                :#94399e;

.v-tab{
  display:flex;
}
.v-tab_tab-head {
	margin: 0;
	padding: 0;
	float: left;
	list-style: none;
	height: 32px;
	width: $tab__head_width;
  li {
      // float: left;
      margin: 0 0 1px 0;
      cursor: pointer;
      padding: 0px 10%;
      height: 32px;
      line-height: 31px;
      color:$tab-head-color;
      border-bottom: 0px;
      overflow: hidden;
      position: relative;
      width:80%;
      &:hover {
        background-color: $tab-hover-bg;
        color:#000;
      }
      &.active {
        border-right:3px solid $border-color-active;
        background-color: #fff;
        color: $active-tab  ;
        display: block;
      }
    }
}
.v-tab_container {
	border-left: 1px solid $border-color;
	float: left;
	width: $tab__container_width;
   min-height:132px;
}
.v-tab_content {
	padding: 10px 20px;
	display: none;
    > :first-child {
    margin-top: 0;
    }
  }


//useless styles for demo

body{
padding:50px;
font-size:14px;
font-family: 'Open Sans', sans-serif;
}
!

JS 

              
                
    $(".v-tab_content").hide();
    $(".v-tab_content:first").show();

    $(".v-tab_tab-head li").click(function() {
	
      $(".v-tab_content").hide();
      var activeTab = $(this).attr("rel"); 
      $("#"+activeTab).fadeIn();		
      $(".v-tab_tab-head li").removeClass("active");
      $(this).addClass("active");

	  
    });
!
999px

Console