.tabs {  
position: relative;  
margin: 40px auto;  
width: 750px;  
}  
.tabs input {  
position: absolute;  
z-index: 1000;  
width: 120px;  
height: 40px;  
left: 0px;  
top: 0px;  
opacity: 0;  
-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";  
filter: alpha(opacity=0);  
cursor: pointer;  
}  
.tabs input#tab-2 {  
left: 120px;  
}  
.tabs input#tab-3 {  
left: 240px;  
}  
.tabs input#tab-4 {  
left: 360px;  
}  
.tabs label {  
background: #5ba4a4;  
background: -moz-linear-gradient(top, #5ba4a4 0%, #4e8c8a 100%);  
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #5ba4a4), color-stop(100%, #4e8c8a));  
background: -webkit-linear-gradient(top, #5ba4a4 0%, #4e8c8a 100%);  
background: -o-linear-gradient(top, #5ba4a4 0%, #4e8c8a 100%);  
background: -ms-linear-gradient(top, #5ba4a4 0%, #4e8c8a 100%);  
background: linear-gradient(top, #5ba4a4 0%, #4e8c8a 100%);  
font-size: 15px;  
line-height: 40px;  
height: 40px;  
position: relative;  
padding: 0 20px;  
float: left;  
display: block;  
width: 80px;  
color: #385c5b;  
letter-spacing: 1px;  
text-transform: uppercase;  
font-weight: bold;  
text-align: center;  
text-shadow: 1px 1px 1px rgba(255, 255, 255, 0.3);  
border-radius: 3px 3px 0 0;  
box-shadow: 2px 0 2px rgba(0, 0, 0, 0.1), -2px 0 2px rgba(0, 0, 0, 0.1);  
}  
.tabs label:after {  
content:'';  
background: #fff;  
position: absolute;  
bottom: -2px;  
left: 0;  
width: 100%;  
height: 2px;  
display: block;  
}  
.tabs input:hover + label {  
background: #5ba4a4;  
}  
.tabs label:first-of-type {  
z-index: 4;  
box-shadow: 2px 0 2px rgba(0, 0, 0, 0.1);  
}  
.tab-label-2 {  
z-index: 3;  
}  
.tab-label-3 {  
z-index: 2;  
}  
.tab-label-4 {  
z-index: 1;  
}  
.tabs input:checked + label {  
background: #fff;  
z-index: 6;  
-webkit-animation: page 0.2s linear;  
-moz-animation: page 0.2s linear;  
-ms-animation: page 0.2s linear;  
-o-animation: page 0.2s linear;  
animation: page 0.2s linear;  
}  
.clear-shadow {  
clear: both;  
}  
.content {  
background: #fff;  
position: relative;  
width: 100%;  
height: 370px;  
z-index: 5;  
overflow: hidden;  
box-shadow: 0 -2px 3px -2px rgba(0, 0, 0, 0.2), 0 2px 2px rgba(0, 0, 0, 0.1);  
border-radius: 0 3px 3px 3px;  
}  
.content div {  
position: absolute;  
top: 0;  
padding: 10px 40px;  
z-index: 1;  
opacity: 0;  
-webkit-transition: all linear 0.3s;  
-moz-transition: all linear 0.3s;  
-o-transition: all linear 0.3s;  
-ms-transition: all linear 0.3s;  
transition: all linear 0.3s;  
}  
.content-1, .content-3 {  
-webkit-transform: translateX(-250px);  
-moz-transform: translateX(-250px);  
-o-transform: translateX(-250px);  
-ms-transform: translateX(-250px);  
transform: translateX(-250px);  
}  
.content-2, .content-4 {  
-webkit-transform: translateX(250px);  
-moz-transform: translateX(250px);  
-o-transform: translateX(250px);  
-ms-transform: translateX(250px);  
transform: translateX(250px);  
}  
.tabs input.tab-selector-1:checked ~ .content .content-1, .tabs input.tab-selector-2:checked ~ .content .content-2, .tabs input.tab-selector-3:checked ~ .content .content-3, .tabs input.tab-selector-4:checked ~ .content .content-4 {
-webkit-transform: translateX(0px);  
-moz-transform: translateX(0px);  
-o-transform: translateX(0px);  
-ms-transform: translateX(0px);  
transform: translateX(0px);  
z-index: 100;  
-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";  
filter: alpha(opacity=100);  
opacity: 1;  
-webkit-transition: all ease-out 0.2s 0.1s;  
-moz-transition: all ease-out 0.2s 0.1s;  
-o-transition: all ease-out 0.2s 0.1s;  
-ms-transition: all ease-out 0.2s 0.1s;  
transition: all ease-out 0.2s 0.1s;  
}  
.content div h2, .content div h3 {  
color: #398080;  
}  
.content div p {  
font-size: 14px;  
line-height: 22px;  
font-style: italic;  
text-align: left;  
margin: 0;  
color: #777;  
padding-left: 15px;  
font-family: Cambria, Georgia, serif;  
border-left: 8px solid rgba(63, 148, 148, 0.1);  
}  
@keyframes"page" {  
0% {  
left: 0;  
}  
50% {  
left: 10px;  
}  
100% {  
left: 0;  
}  
}  
@-moz-keyframes page {  
0% {  
left: 0;  
}  
50% {  
left: 10px;  
}  
100% {  
left: 0;  
}  
}  
@-webkit-keyframes"page" {  
0% {  
left: 0;  
}  
50% {  
left: 10px;  
}  
100% {  
left: 0;  
}  
}  
@-ms-keyframes"page" {  
0% {  
left: 0;  
}  
50% {  
left: 10px;  
}  
100% {  
left: 0;  
}  
}  
@-o-keyframes"page" {  
0% {  
left: 0;  
}  
50% {  
left: 10px;  
}  
100% {  
left: 0;  
}  
}

<section class="tabs">     
      <input id="tab-1" type="radio" name="radio-set" class="tab-selector-1" checked="checked" />     
      <label for="tab-1" class="tab-label-1">Вкладка 1</label>     
      <input id="tab-2" type="radio" name="radio-set" class="tab-selector-2" />     
      <label for="tab-2" class="tab-label-2">Вкладка 2</label>     
      <input id="tab-3" type="radio" name="radio-set" class="tab-selector-3" />     
      <label for="tab-3" class="tab-label-3">Вкладка 3</label>     
      <input id="tab-4" type="radio" name="radio-set" class="tab-selector-4" />     
      <label for="tab-4" class="tab-label-4">Вкладка 4</label>     
      <div class="clear-shadow"></div>     
      <div class="content">     
      <div class="content-1">     
      <h2>Заголовок 1</h2>     
      <p>Текст 1</p>     
      <h3>Подзаголовок 1</h3>     
      <p>Доп. текст 1</p>      
      </div>     
      <div class="content-2">     
      <h2>Заголовок 2</h2>     
      <p>Текст 2</p>     
      <h3>Подзаголовок 2</h3>     
      <p>Доп. текст 2</p>     
      </div>     
      <div class="content-3">     
      <h2>Заголовок 3</h2>     
      <p>Текст 3</p>     
      <h3>Подзаголовок 3</h3>     
      <p>Доп. текст 3</p>     
      </div>     
      <div class="content-4">     
      <h2>Заголовок 4</h2>     
      <p>Текст 4</p>     
      <h3>Подзаголовок 4</h3>     
      <p>Доп. текст 4</p>     
      </div>     
      </div>     
     </section>